J. Tiempo, J. Blancia, K. Canelio, J. Mercado, V. Corbita, and R. Sarmiento, “Population Assessment and Threats to Long-Tailed Macaques (Macaca fascicularis Raffles) in Areas Outside Sumile Botanical and Zoological Park, Butuan City, Philippines”, EAJMR, vol. 2, no. 4, pp. 1539–1548, Apr. 2023.