هند بلعيد خليفة, & هند عبد القادر عيسى. (2025). Developing a dynamic mathematical model to analyze the impact of technological progress on productivity using differential equations and the Cobb-Douglas production function. African Journal of Advanced Pure and Applied Sciences, 4(4), 722–731. Retrieved from https://aaasjournals.com/index.php/ajapas/article/view/1765