Abdujaborova Маmura Тoshmuxamadovna, and Ergashov Shohruh Rustam ugli. “Marginal Profit Analysis”. International Journal Of Management And Economics Fundamental 5, no. 06 (June 10, 2025): 36–39. Accessed September 13, 2026. https://theusajournals.com/index.php/ijmef/article/view/6030.