Osias Kit T. Kilag, Francisca T. Uy, Ma. Felina S. Calledo, Yolanda T. Dela Cerna, Khen M. Villanueva and Neil Andrian A. Angtud 2023. Quality performance of teachers: work environment, work attitude, and principal supervision: qualitative investigation. Science and Education. 4, 7 (Aug. 2023), 415–429.