1. World Health Organization. Regional Office for the Western Pacific. (2001). Health
2. Research methodology: a guide for training in research methods. 2nd ed.. WHO Regional
3. Office for the Western Pacific. https://apps.who.int/iris/handle/10665/206929
4. Dwivedi, SN. Understanding of Scales of Measurements and its Consideration in
5. Clinical Research. Central India Journal of Medical Research. 2023. Retrieved from