[1]
F. M. . Rotua Nainggolan, T. Y. W. Subroto, and A. Marsoyo, “The Value of Gotong-royong in the Mountainous Settlement of Kepuharjo Village at Pagerjurang Permanent Shelter in Yogyakarta, Indonesia”, Int J. of BES, vol. 8, no. 3, pp. 93–106, Aug. 2021.