Lanos MEC, Ulfa A, Damanik A, Sulurudin S, Jauhari P. Efforts to Improve Discuss throwing Skills with Water Pipe Modifications in Junior High School Students. edumaspuljr [Internet]. 2023Mar.23 [cited 2026Apr.5];7(1). Available from: https://jurnal.unimen.cloud/index.php/maspuljr/article/view/5604