“Impact of Marketing-Mix for Core-Food Items on Purchase Behavior at Subsistence Marketplace- An Empirical Study of Urban Subsistence Market of Delhi”, GJMBR, vol. 18, no. E3, pp. 5–19, Mar. 2018, Accessed: Jan. 23, 2026. [Online]. Available: https://journalofbusiness.org/index.php/GJMBR/article/view/2469