Slack, D. C., Esteves, R. R., Espejel, A., Oyorsaval, B. and Ma, Y. (2017) “Subsurface drip irrigation: A technology for safer irrigation of vegetable crops”, Engineering and Applied Science Research, 44(2), pp. 111–114. Available at: https://ph01.tci-thaijo.org/index.php/easr/article/view/84202 (Accessed: 3 May 2024).