sembiring, julian, David P. Rumambi, and Ruland A. Rantung. “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, no. 2 (January 12, 2026): 143–149. Accessed March 16, 2026. https://ejournal.unsrat.ac.id/v3/index.php/teta/article/view/66039.