Mciza Z, Goedecke J, Lambert E. Validity and reliability of a physical activity/inactivity questionnaire in South African primary schoolgirls. SA J Sports Med [Internet]. 2007 Dec. 5 [cited 2024 May 2];19(5):117-24. Available from: https://journals.assaf.org.za/index.php/sajsm/article/view/251