Wattanapreechanon, Ekasit, and Patana Sukprasert. 2016. “Hydroponic Vegetable Cultivation Development for Extension at Luk Phra Dabos Agricultural Training and Development Center, Samut Prakan Province”. RMUTSB ACADEMIC JOURNAL 4 (2). Phra Nakorn Sri Ayutthaya:106-19. https://li01.tci-thaijo.org/index.php/rmutsb-sci/article/view/99587.