Nafisah, Tazkiyyatun, and Asyhari. “The Role of Servant Leadership and Knowledge Acquisition on Employee Performance With Self-Efficacy As an Intervening Variable at the Futuhiyyah Mranggen Demak Foundation”. Al Tijarah 11, no. 2 (December 30, 2025): 236–244. Accessed February 18, 2026. https://ejournal.unida.gontor.ac.id/index.php/altijarah/article/view/15753.