Boonsri, W., S. Sinawat, and S. Sinawat. “Normal Multifocal Electroretinograms Study in Srinagarind Hospital: A Pilot Study”. Srinagarind Medical Journal, vol. 31, no. 5, Oct. 2016, p. 64, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/68229.