Bunjongsiri, K., and A. Pradidthaprecha. “Physical and Mechanical Properties of Cement Mortar mixed with Recycled Spent Coffee Grounds”. SAU JOURNAL OF SCIENCE & TECHNOLOGY, vol. 11, no. 2, Dec. 2025, pp. 39-50, https://ph01.tci-thaijo.org/index.php/saujournalst/article/view/263230.