Prajitno, Aditia Sugiarto, and Johannes Gerardus Nirbito. 2021. “Factor Analysis on the Motivation of Driver-Partners to Design an Effective Reward System (a Study at PT HSA Surabaya)”. KnE Social Sciences 5 (5), 342–353. https://doi.org/10.18502/kss.v5i5.8821.