Rianti Fela, Manullang M, Siregar RT, Damanik SE. Pengaruh Program Water Resources And Irrigation Sector Management Project (WISMP) Terhadap Produktivitas Padi Sawah Di Kecamatan Siantar Kabupaten Simalungun. JRP [Internet]. 2019 Aug. 30 [cited 2024 Nov. 22];1(2):67-74. Available from: https://jurnal.usi.ac.id/index.php/jrp/article/view/524