Satria Bahari Johan, Ahmad, 		Putri, Sekar, 		Hajar, Granita, AND 		Wicaksono, Ardian Yusuf.
" Modified KNN-LVQ for Stairs Down Detection Based on Digital Image" <em>Lontar Komputer : Jurnal Ilmiah Teknologi Informasi</em> [Online], Volume 12 Number 3 (23 November 2021)