Atyaf Ayman Euyz Hashem et al. 2025. Design and Implementation Of A Smart Stick and An Alert Device For People With Visual Impairment. OBAT: Jurnal Riset Ilmu Farmasi dan Kesehatan. 3, 1 (Jan. 2025), 157–162. DOI:https://doi.org/10.61132/obat.v3i1.990.