“Analaysis Of Variations In Drainage Hole Distance From The Base Of The Tube And Nutrient Concentration On The Growth Of Pakcoy (Brassica Chinensis L.) in AJB System”. J-AGENT (Journal of Agricultural Engineering and Technology) 1, no. 1 (November 19, 2023): 1–12. Accessed October 7, 2025. https://journal.unram.ac.id/index.php/agent/article/view/3632.