Ryad Jamil Wahab, Rana Salim Mataab, Rajaa Saadi Ibrahim. Design for maintenance is a way to extend the useful life of machines and equipment: a field study in a group of factories in Nineveh Governorate. Tikrit J. Admin. Econ. Sci. [Internet]. 2025 Jun. 30 [cited 2026 Jul. 29];21(70 part 1):250-78. Available from: https://www.tjaes.org/index.php/tjaes/article/view/2081