Sulasmono, Bambang Suteng. “PROBLEM SOLVING: SIGNIFIKANSI, PENGERTIAN, DAN RAGAMNYA”. Satya Widya 28, no. 2 (December 5, 2012): 155–166. Accessed December 13, 2025. https://ejournal.uksw.edu/satyawidya/article/view/132.