SYAM, M. H.; RAWIS, J. A. M.; TUERAH, R. M. S.; WULLUR, M. M. Optimization of E-Learning Learning at Vocational School in Selatan Minahasa (Case Study at North Sulawesi Shipping Polytechnic). International Journal on Integrated Education, v. 5, n. 6, p. 72-77, 3 Jun. 2022.