S. Sumarmi, A. S. Kholis, and E. N. Sholihah, “Pilot land of Biosoy new superior variety soybean for farmers in Wonoharjo Village, Boyolali Regency”, ABDIMAS J. Pengabdi. Masy. Univ. Merdeka Malang, vol. 7, no. 1, pp. 139–148, Feb. 2022.