Ubaidillah, Firdaus, 		Purnomo, Kosala, AND 		Juliyanto, Bagus.
" Fungsi Lancip dan Karakteristiknya" <em>Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai-Nilai Islami)</em> [Online], Volume 5 Number 1 (12 February 2025)