Tarigan, Muhammad, Ahmad Fadlan, Anggia Ramadhan, Annisa Anggraini Siswanto, & Rachmad Khadafi. " WELFARE ANALYSIS OF RICE FARMING BUSINESS AT KOTAR VILLAGE, HAMPARAN PERAK DISTRICT, DELI SERDANG REGENCY." Proceeding International Conference Keputeraan Prof. H. Kadirun Yahya [Online], 1.1 (2022): 406-415. Web. 22 Dec. 2024