Hidayat, Ridho Alfi Fajar, Tri Inda Fadhila Rahma, and Nurbaiti Dona. “The Effect of Learning Strategy, Stress Management, and Social Support on Student Productivity: A Human Resource Development Perspective Among FEBI UINSU Students”. Journal Development Manecos 4, no. 1 (July 25, 2026): 251–275. Accessed July 30, 2026. https://scieclouds.com/ojsnew/index.php/jm/article/view/400.