Ahmad Septiandika Adirahma, Rumi Iqbal Doewes, Sapta Kunta Purnama, Muhammad Furqon Hidayatullah, and Muchsin Doewes. “Mathematical Model of Long Jump”. Results in Nonlinear Analysis, vol. 6, no. 4, Oct. 2023, pp. 1-6, https://nonlinear-analysis.com/index.php/pub/article/view/310.