R. Rosita, A. R. Pratama, E. Sukriah, R. Susilana, and R. Rusman, “Integrating PjBL and service-learning to improve 21st-century skills in tourism education”, Inov. Curr, vol. 21, no. 3, pp. 1365–1376, Aug. 2024, doi: 10.17509/jik.v21i3.69249.