R. Sedek, R. Sedek, N. F. Badri, N. F. Badri, and S. A. Nazri, “Relationship Between Stress, Physical Activity Level and Body Mass Index Among School Adolescents in Penang, Malaysia”, Pak. J. Nutr., vol. 19, no. 9, pp. 451–459, Aug. 2020, doi: 10.3923/pjn.2020.451.459.