Fadmala, Yuyun, Cucu Hayati, and Hanifah Hanifah. “Analisis Pengoptimalan Supply Chain Dan Value Chain Di Bulog Kantor Cabang Surabaya Utara”. Jurnal Ekonomi, Pendidikan dan Pengabdian Masyarakat 1, no. 2 (April 17, 2024): 39–45. Accessed January 30, 2025. http://jependimas.org/index.php/go/article/view/22.