Research on job performance has been conducted in various contexts, such as in the education, agricultural, and banking sector. However, knowledge on this issue in other contexts, particularly the construction sector, is still limited. Therefore, this study was conducted in the context of state-owned construction companies, known collectively as BUMN Karya, to address this gap. BUMN Karya has a pivotal role in Indonesia’s economic growth. This study examined the effects of organizational factors (human resource management practices, transformational leadership) and individual factor (organizational citizenship behavior, work motivation) on job performance. This study also examined the effect of human resource management practices, transformational leadership, and organizational citizenship behavior on work motivation. In addition, this study examined the role of work motivation as a mediator between human resources management practices, transformational leadership, organizational citizenship behavior, and job performance. The research data were collected through survey from 776 employees of BUMN Karya. The data were analyzed with regression analysis to test the direct relationships between the variables. Hierarchical regression analysis was carried out to test the mediation hypotheses. The results showed the significant relationship between organizational citizenship behavior and work motivation and between organizational citizenship behavior and job performance. In addition, the current study revealed a significant relationship between work motivation and job performance. Finally, this study found work motivation as a mediator between organizational citizenship behaviour and job performance.

The aim of this study was to examine the factors that influence service quality in the Directorates General of Education in the Sultanate of Oman. Specifically, this study investigates the effect of work environment factors (organizational learning culture, top management support, Islamic work ethics) and individual factors (motivation and job satisfaction) on service quality. This study also investigates the role of motivation and job satisfaction as mediators in the relationship between organizational learning culture, top management support, Islamic work ethics and service quality. The data for this study was collected through questionnaires from two sources. The first source was the heads of sections in the Directorates General of Education in the Sultanate of Oman. The questionnaire includes questions related to organizational learning culture, top management support, Islamic work ethics, motivation, and job satisfaction. The second source was the employees under the supervision of the heads of section (in this study regarded as internal customers for the heads of section). The questionnaire consists of questions related to service quality performed by the heads of section. The final sample was 206 heads of sections and 620 employees. The data of this study was analyzed using the Statistical Package for the Social Sciences software. The findings show that organizational learning culture ((β=0.270; t value: 3.298; p<0.01), top management support (β=0.198; t value: 2.440; p<0.05) and Islamic work ethics (β=0.559; t value: 9.435; p<0.001) have a positive and significant effect on job satisfaction. However, only the Islamic work ethics (β=0.559; t value: 9.435; p<0.001) shows a positive and significant effect on motivation. The results also showed a positive and significant effect (β=0.132; t value: 1.986; p<0.05) of motivation on service quality. However, job satisfaction has no significant effect (β=-0.006; t value: 0.090; p>0.05) on service quality. In addition, the results indicated that there is no mediating effect of motivation and job satisfaction in the relationship between organizational learning culture, top management support, Islamic work ethics and service quality. This study provides significant input to the Ministry of Education, Oman, about the importance of organizational learning culture, top management support, Islamic work ethic and motivation in improving the service quality provided by the Ministry of Education, Oman.