Nugraha, Mohamad Dena, Rhorom Priyatikanto, and Judhistira Aria Utama. “STATISTIK LUAS DAERAH AKTIF MATAHARI DAN PERUBAHANNYA”. Joint Prosiding IPS dan Seminar Nasional Fisika 8 (December 23, 2019): SNF2019–PA. Accessed May 29, 2026. https://journal.unj.ac.id/unj/index.php/prosidingsnf/article/view/13413.