Harun, Dani Ramdani, Sony Heru Priyanto, and Liely Suharti. 2021. “Farmer Cards: Model, Database, Accuracy, and Improvement in Goverment Quality Service”. Asian Journal of Agriculture and Rural Development 11 (3):236-44. https://doi.org/10.18488/journal.ajard.2021.113.236.244.