“Implementation of the Halal Product Assurance System (SJPH) at the Nutrition Installation of the Aisyiyah Islamic Hospital in Nganjuk: Implementasi Sistem Jaminan Produk Halal (SJPH) Pada Instalasi Gizi Rumah Sakit Islam Aisyiyah Nganjuk”. 2026. Procedia of Engineering and Life Science 10 (1): 643-47. https://doi.org/10.21070/pels.v10i1.2965.