Dian Musrianto, Lungit Wicaksono, Joan Siswoyo, and Heru Sulistianta, “The Relationship Between Leg Muscle Power And Waist Flexion On Sickle Kick Ability In Male Students Of Pencak Silat Extracurricular SMAN 1 Terusan Nunyai Central Lampung Regency”, JPJ, vol. 6, no. 3, pp. 554-562, Apr. 2026.