Saputra, I.N.G.A.J. et al. 2026. Exploring Service Excellence Training: Developing the Professional Competence of Waitstaff at Small-Scale Restaurants in Bali. SIGn Journal of Social Science. 6, 2 (May 2026), 526–544. DOI:https://doi.org/10.37276/sjss.v6i2.696.