Arini, Dewi Eka, Dedi Purwana, and Muchlis R. Luddin. 2020. “The Influence of Training, Customer Orientation and Work Engagement on The Hotel Supervisor Professionalism”. IJHCM (International Journal of Human Capital Management) 4 (2), 114-24. https://doi.org/10.21009/IJHCM.04.02.10.