M. R. Widhiarto, M. Solichah, and S. Biduri, “UMKM Assistance Through Halal Product Certification and Digital Marketing in Pagerngumbuk Village: Pendampingan UMKM Melalui Sertifikasi Produk Halal dan Digital Marketing di Desa Pagerngumbuk”, pssh, vol. 3, pp. 1177-1183, Jul. 2022.