Nguyen, Le Tram, Tran Duc Minh Phan, and Huu Quyen Pham. 2026. “Interval Valued Optimization Problem on Hadarmard Manifold: Wofle Duality”. Dong Thap University Journal of Science - Natural Sciences Issue 15 (5):41-50. https://doi.org/10.52714/dthu.ns.2145.1832.