Sinaga O, Saragi D, Halking H, Setiawan D. Citizen Project Based on Problem Solving Skills. Rand. Inter. Edu. Ling. Sci. J. [Internet]. 2024Sep.30 [cited 2026Apr.22];5(3):1164-75. Available from: https://www.randwickresearch.com/index.php/rielsj/article/view/1068