Khairina, Annisa, et al. “Keunggulan Bersaing Usaha Mikro Hasil Olahan Kentang Usaha Dagang Inyak Berbasis Inovasi Produk”. Innovative: Journal Of Social Science Research, vol. 2, no. 1, Jan. 2022, pp. 357-61, http://j-innovative.org/index.php/Innovative/article/view/188.