SUYASA, G.; HAMDI, M.; TEGUH, P.; MEGANDARU. Optimization Model for the Implementation of Rock Mining Policy Post Law Enactment of the Republic of Indonesia Number 23 the Year 2014: Case Study in Subang Regency, West Java Province. International Journal of Science and Society, v. 1, n. 3, p. 131 - 145, 13 Dec. 2019.