sembiring, julian, David P. Rumambi, and Ruland A. Rantung. 2026. “The Effect Of Gutter Slope On The Growth Of Caisim (Brassica Chinensis L Var. Parachinensis) Plants Using The Nft (Nutrient Film Technique) Hydroponic System”. Jurnal Teknologi Pertanian (Agricultural Technology Journal) 16 (2):143-49. https://doi.org/10.35791/jteta.v16i2.66039.