Simanjuntak, H., Sembiring, D. and Amrul, H. 2026. 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. Jurnal Multidisiplin Dehasen (MUDE). 5, 2 (Apr. 2026), 1321-1328. DOI:https://doi.org/10.37676/mude.v5i2.11257.