Simanjuntak H, Sembiring D, Amrul H. The Effectiveness Of Growing Media And Bio-Organic Fertiliser Application On The Growth And Yield Of Pak Choi (Brassica Rapa Var. Chinensis) For Sustainable Agriculture In Simalungun. mude [Internet]. 30Apr.2026 [cited 11May2026];5(2):1321-8. Available from: https://jurnal.unived.ac.id/index.php/mude/article/view/11257