Bizzy, Irwin, Riman Sipahutar, Eddy Ibrahim, and Muhammad Faizal. “Determining of Drying Characteristics for South Sumatera Low Rank Coal Using Solar and Laboratory Scaled Oven”. International Journal on Advanced Science, Engineering and Information Technology 7, no. 6 (December 25, 2017): 1998–2003. Accessed June 2, 2024. http://ijaseit.insightsociety.org/index.php/ijaseit/article/view/2006.