Abdujaborova Маmura Тoshmuxamadovna, Ergashov Shohruh Rustam ugli. Marginal Profit Analysis. ijmef [Internet]. 2025 Jun. 10 [cited 2026 Sep. 13];5(06):36-9. Available from: https://theusajournals.com/index.php/ijmef/article/view/6030