Sinaga, N. L. B. ., E. E. Hia, and T. Setiawan. “The Influence of Employee Professionalism and Service Quality on Player (Golfer) Satisfaction at Imperial Golf Club Lippo Village Karawaci”. IJOSPOL - International Journal of Social, Policy and Law , vol. 7, no. 3, Mar. 2026, pp. 121-30, doi:10.8888/ijospol.v7i3.281.