Faridah E, Kasih I, Nugroho S, Emilia E, Irfan M, Mustaqim R, et al. Article RETRACTED due to manipulation by the authors Eficacia del desarrollo de medios m-gym en el aprendizaje de la gimnasia rítmica para estudiantes y profesores en Indonesia (Effectiveness of m-gym media development in learning rhythmic gymnastics for students and lecturers in Indonesia): Article RETRACTED due to manipulation by the authors. Retos [Internet]. 2024 Oct. 2 [cited 2026 Jun. 10];59:595-601. Available from: https://revistaretos.org/index.php/retos/article/view/107464