Susanto, Herry, et al. “Analysis of the Sand Drying Process in the Biomass-Energized Rotary Drying Machine: Analysis of the Sand During Process in the Biomass-Energized Rotary Drying Machine”. Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences, vol. 58, no. S, Oct. 2021, pp. 93-100, doi:10.53560/PPASA(58-sp1)741.