STUDY OF THE EFFECTIVENESS OF ENVIRONMENTAL ENRICHMENT ON LONG-TAILED MONKEYS (Macaca fascicularis) WITH ABNORMAL BEHAVIOR. BIOMA [Internet]. 2025 Oct. 7 [cited 2026 Feb. 12];14(2):33-45. Available from: https://journal2.upgris.ac.id/index.php/bioma/article/view/1644