Iba, Angel, Saroyo Saroyo, dan Farha Dapas. “Biodiversity of Diurnal Birds in City Forest and Teak Forest in Danowudu Village, Ranowulu Subdistrict, Bitung City, North Sulawesi ”. International Journal of Biosystem Research 1, no. 2 (Juli 1, 2026): 74–81. Diakses Juli 24, 2026. https://ejournal.unsrat.ac.id/v3/index.php/ijbr/article/view/67441.