Eamrat, Rawintra. “Hydrogenotrophic Denitrification Activity under Intermittent Hydrogen Supply Using Micro-Bubble System”. Naresuan University Engineering Journal 11, no. 1 (May 26, 2016): 47–51. Accessed May 3, 2024. https://ph01.tci-thaijo.org/index.php/nuej/article/view/48050.