Uy, Francisca, et al. “Quality Performance of Teachers: Work Environment, Work Attitude, and Principal Supervision: Qualitative Investigation”. International Multidisciplinary Journal of Research for Innovation, Sustainability, and Excellence (IMJRISE), vol. 1, no. 1, Jan. 2024, pp. 101-9, https://risejournals.org/index.php/imjrise/article/view/11.