M. Mahmud, H. J. Budirianto, W. Wahyudi, and A. Kusumandari, “A study conversion to be mining cement in Maruni protected forest Manokwari Regency”, JPSL, vol. 10, no. 3, pp. 545–558, Nov. 2020, doi: 10.29244/jpsl.10.3.545-558.