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. https://doi.org/10.65418/ajapas.v4i4.1765