Nur Ali Amri, Septi Wulandari, Tedy Agung Cahyadi, Inmarlinianto, Satria Abadi. Distance of Drill-Hole Determination based on Global Estimation Variance of Coal Resources Classification. J. Adv. Res. Appl. Sci. Eng. Tech. [Internet]. 2023 Oct. 19 [cited 2024 Nov. 24];33(1):267-74. Available from: https://semarakilmu.com.my/journals/index.php/applied_sciences_eng_tech/article/view/2893