Izhar Ali Amur, Dr. Mahboob Ali Dehraj, Mohsin Ali Amur, Asghar Ali Rajput 2020. STUDY THE EFFECTIVENESS OF HEURISTIC STRATEGY WITH METACOGNITIVE AND INVESTIGATION APPROACH TO THE STUDENTS MATHEMATICAL PROBLEM SOLVING ABILITY. PalArch’s Journal of Archaeology of Egypt / Egyptology. 17, 9 (Nov. 2020), 10020 - 10026.