Cormick, P. M., and A. P. D. S. Tayraukham. “Construction of Learning Diagnostic Tests in the Mathematics Learning Numbers and Numerical Work for Prathomsueksa 6 Student under the Office of Nong Bua Lamphu Primary Educational Service Area Zone 1”. Journal for Developing the Social and Community, vol. 6, no. 2, Dec. 2019, pp. 163-76, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/233169.