Diaz, Rowell Agliones. “Regional and Grade-Based Variations in Rice Price Spreads: An Analysis of Wholesale and Retail Pricing Dynamics in the Philippines”. Asian Journal of Agriculture and Rural Development 15, no. 2 (June 18, 2025): 260–269. Accessed June 23, 2025. https://archive.aessweb.com/index.php/5005/article/view/5415.