Retno Fajar Kusdiyanti, Ravik Karsidi, & Sugihardjo. (2019). Farmers’ Participation on Rice, Corn, and Soybeans Enhancement Production Food Self-Sufficiency Program at Juwangi District Boyolali Regency. Advances in Social Sciences Research Journal, 6(11), 9–14. Retrieved from http://804474.wannyin.cyou/index.php/ASSRJ/article/view/7310