N. Rahmadhana, S. Sidabutar, R. M. Pasaribu, P. Silaen, L. Saragih, and R. Sidabutar, “The Relationship Between HIV/AIDS Knowledge and Risky Sexual Behavior Among Men Who Have Sex with Men (MSM) at the Pematangsiantar City Health Office in 2026”, ssj, vol. 4, no. 4, pp. 1013-1022, Oct. 2026.