[1]
Z. Mciza, J. Goedecke, and E. Lambert, “Validity and reliability of a physical activity/inactivity questionnaire in South African primary schoolgirls”,
SA J Sports Med, vol. 19, no. 5, pp. 117–124, Dec. 2007, doi:
10.17159/2078-516X/2007/v19i5a251.