G. M. Balacy, F. M. Babatuan, J. C. Gonzales, and R. Sienes, “Health hazards of barn swallow (Hirundo rustica) in Rizal Avenue, Digos City”, UMDRJ, vol. 9, no. 1, pp. 182–193, Dec. 2017, Accessed: Feb. 06, 2026. [Online]. Available: https://ieesjournals.com/index.php/umdrj/article/view/58