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DISAGGREGATING THE DEMAND ELASTICITIES OF RAIL SERVICES AND ITS INFLUENCING FACTOR IN PAKISTAN. Pak. J, Soc. Sci. [Internet]. 2022 Jun. 30 [cited 2025 Jun. 19];4(2):702-16. Available from: https://ojs.pjsr.com.pk/index.php/PJSR/article/view/523