Rotua Nainggolan, F. M. ., Subroto, T. Y. W. and Marsoyo, A. (2021) “The Value of Gotong-royong in the Mountainous Settlement of Kepuharjo Village at Pagerjurang Permanent Shelter in Yogyakarta, Indonesia”, International Journal of Built Environment and Sustainability, 8(3), pp. 93–106. doi: 10.11113/ijbes.v8.n3.822.