Ngamtip Poovarodom and Chackapan Ngaowthong (2010) “A Simple Permeation Test Cell for Dual Application”, Agriculture and Natural Resources. Bangkok, Thailand, 44(1), pp. 107–115. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/244886 (accessed: 9 October 2026).