<![CDATA[This study aims to analyze the influence of work culture, self-efficacy, and servant leadership on service quality at Private Vocational High Schools (SMK) Cluster 2 in South Tangerang City. The study employed a quantitative approach using a survey method. The research population consisted of 167 teachers, with a sample of 118 respondents determined using the Slovin formula. Data were collected through a Likert-scale questionnaire that had met the validity and reliability requirements. Data analysis was conducted using descriptive statistics, classical assumption tests, and multiple linear regression analysis with the assistance of SPSS software. The results indicate that work culture, self-efficacy, and servant leadership each have a positive and significant effect on service quality. The contribution of work culture to service quality is reflected by a coefficient of determination (R²) of 0.177, self-efficacy by 0.231, and servant leadership by 0.119. Simultaneously, work culture and self-efficacy contribute 27.2% to service quality, work culture and servant leadership contribute 20.8%, while self-efficacy and servant leadership contribute 23.8%. Furthermore, the simultaneous analysis of all three independent variables demonstrates a positive and significant effect on service quality, with an F-value of 14.328, which is greater than the F-table value, and a significance level of 0.000 (< 0.05). The coefficient of determination (R²) of 0.274 indicates that 27.4% of the variance in service quality can be explained by work culture, self-efficacy, and servant leadership, while the remaining 72.6% is influenced by other factors outside the research model. These findings suggest that strengthening work culture, enhancing teachers' self-efficacy, and implementing servant leadership by school principals are important factors in improving the quality of educational services.]]>
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