Leni Linda Sari, and Muhammad Wakhid Musthofa. 2023. “ANALYSIS OF STABILITY OF HIV/AIDS EPIDEMIC IN YOGYAKARTA WITH AGE GROUP AND POPULATION DENSITY”. Sunan Kalijaga Journal of Applied Mathematics 1 (1):23-33. https://sunankalijaga.org/jurnal/index.php/skjam/article/view/20.