Mighanetara K, Peng-ngiw P, Jaidee R. The effect of a leachate collection ditch on natural attenuation of heavy metal migration from an open dump landfill: An indication from sequential extraction. Eng Appl Sci Res [internet]. 2024 May 24 [cited 2026 Oct. 11];51(3):409-18. available from: https://ph01.tci-thaijo.org/index.php/easr/article/view/255123