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. 2023;1(1):1-12. Accessed October 7, 2025. https://journal.unram.ac.id/index.php/agent/article/view/3632