Jenn Zhueng Tam, Zuraida Mohamed, Sharifa Ezat Wan Puteh, and Noor Hassim Ismail. “COMPARISONS BETWEEN BACKS QUESTIONNAIRE AND OTHER EXISTING QUESTIONNAIRES AGAINST STANDARDS SET BY A SOCIAL SECURITY ORGANIZATION BASED IN A DEVELOPING COUNTRY”. Malaysian Journal of Public Health Medicine 19, no. 2 (April 1, 2019): 96-102. Accessed September 25, 2022. http://mjphm.org/index.php/mjphm/article/view/175.