Casinillo L, Dayap J. Income and happiness in teaching: Understanding teachers’ well-being using regression model and K-means clustering . JRPPTTE [Internet]. 2023 Dec. 30 [cited 2024 Nov. 21];13(2):131-4. Available from: https://ejournal.upsi.edu.my/index.php/JRPPTTE/article/view/8229