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Wannaprom N, Khanhuathon Y. Development of Simple Device based on Gas Diffusion with Natural Reagent Immobilized Paper and Digital Image Colorimetry for Ammonia Determination. J Appl Res Sci Tech [internet]. 2020 Jun. 23 [cited 2026 Sep. 1];19(1):86-9. available from: https://ph01.tci-thaijo.org/index.php/rmutt-journal/article/view/240257