Perwitasari-FarajallahD., IskandarE., SawitriH.I., AbimanyuT.L., MaulanaV.S., RachmawatiA.D., PurnamaI. and DarusmanH.S. 2022. Population Estimate of Long-Tailed Macaques (Macaca fascicularis) on Tinjil Island. HAYATI Journal of Biosciences. 30, 2 (Dec. 2022), 193-197. DOI:https://doi.org/10.4308/hjb.30.2.193-197.