Widiastuti, Ida Ayu Eka, et al. “Relationship Between Cycling Mileage and VO2max Value of Cyclists in Bike Community Mataram City, West Nusa Tenggara”. Jurnal Biologi Tropis, vol. 21, no. 1, Feb. 2021, pp. 231-6, doi:10.29303/jbt.v21i1.2451.