Pratiwi, I. S. ., A. . Agustiwi, and B. S. . Priambada. “Law Enforcement Obstacles to Traffic Violations through Electronic Tips (Etle) in Surakarta”. The International Journal of Politics and Sociology Research, vol. 11, no. 2, Aug. 2023, pp. 245-53, doi:10.35335/ijopsor.v11i2.116.