Sinsuwonkwat, W., P. Sanyathitiseree, S. Phattanakunanan, S. Jala, and P. Lertwatcharasarakul. “Optimized Codons of Polar Tube Protein 1 Gene of Encephalitozoon Cuniculi to Enhance Protein Expression in Escherichia Coli”. The Thai Journal of Veterinary Medicine, vol. 46, no. 4, Jan. 2017, pp. 579-87, https://he01.tci-thaijo.org/index.php/tjvm/article/view/73784.