Widhiarto, Maulana Rizky, et al. “UMKM Assistance Through Halal Product Certification and Digital Marketing in Pagerngumbuk Village: Pendampingan UMKM Melalui Sertifikasi Produk Halal Dan Digital Marketing Di Desa Pagerngumbuk”. Procedia of Social Sciences and Humanities, vol. 3, July 2022, pp. 1177-83, doi:10.21070/pssh.v3i.249.