Yovi, E. Y. (1) “%VdotO2max as Physical Load Indicator Unit in Forest Work Operation”, Jurnal Manajemen Hutan Tropika. Bogor, INA, 13(3), pp. 140-145. Available at: http://journal.ipb.ac.id/index.php/jmht/article/view/2866 (Accessed: 13August2020).