Bhandari, Prem. “A Note on Survey Research Methods Levels of Measurement: Foundational Basis for Quantitative Analysis of Survey Data”. Dhaulagiri Journal of Sociology and Anthropology 16, no. 01 (December 31, 2022): 122–126. Accessed April 26, 2024. https://www.nepjol.info/index.php/DSAJ/article/view/50982.