Kiettikunwong, N. , Narot, P. , Istiq’faroh, N., Setiawan, R. and Deeod, P. 2025. Development of 21st Century Skills via a Social Service Program at the Tertiary Education Level in Indonesia. Journal of Ecohumanism. 4, 1 (Jan. 2025), 3309 –. DOI:https://doi.org/10.62754/joe.v4i1.6150.