Clowutimon W, Assawasaengrat P. Production of activated carbon from peanut hill using phosphoric acid and microwave activation. Eng Appl Sci Res [internet]. 2015 Oct. 2 [cited 2026 Sep. 25];42(2):185-91. available from: https://ph01.tci-thaijo.org/index.php/easr/article/view/34886