Marpaung, Sutan Sahala Muda, et al. “The Analysis of Sustainability Factors Underlying Human-Monkeys (Macaca Fascicularis) Conflict at IPB University”. Jurnal Pengelolaan Sumberdaya Alam Dan Lingkungan (Journal of Natural Resources and Environmental Management), vol. 13, no. 4, Dec. 2023, pp. 596-05, https://doi.org/10.29244/jpsl.13.4.596-505.