Pardede, Jasman, Dina Budhi Utami, and adlan chosyiyar rochman. “IMPLEMENTASI “PRINCIPAL COMPONENT ANALYSIS - SCALE INVARIANT FEATURE TRANSFORM” PADA CONTENT BASED IMAGE RETRIEVAL”. Jurnal Teknik Informatika dan Sistem Informasi 3, no. 3 (December 7, 2017). Accessed May 2, 2024. https://journal.maranatha.edu/index.php/jutisi/article/view/696.