Hakim, Abdul Aziz, et al. “THE EFECT OF BIOMECHANICAL KNOWLEDGE, PHYSICAL CONDITION, AND LANDING TECHNIQUE ON ACL INJURY RISK OF SEPAK TAKRAW ATHLETES”. JIPES - JOURNAL OF INDONESIAN PHYSICAL EDUCATION AND SPORT, vol. 3, no. 2, Dec. 2017, pp. 151-6, doi:10.21009/JIPES.032.12.