Maiphoom, U. “THE CORRELATION BETWEEN FACTORS OF MARKETING MIX AND DECISION-MAKING PROCESSES OF BUYING SPORTS SHOES AMONG ELDERLY CUSTOMERS IN BANGKOK”. Valaya Alongkorn Review, vol. 11, no. 1, Apr. 2021, pp. 119-32, https://so06.tci-thaijo.org/index.php/var/article/view/245479.