D. Syafrini, M. F. Nurdin, Y. S. Sugandi, and A. Miko, “Rejuvenation of the Former Coal Mining Industry Area into a Heritage Site: A Solution to Overcome the Threat of Environmental and Social Problems”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 10, no. 5, pp. 2111–2117, Oct. 2020.