Sinwittayarak, S., S. Sujinnapram, T. Nilkamjon, . S. Ratreng, P. Udomsamuthirun, S. Meakniti, and T. Kruaehong. “Effect of the AgO2 Doping on the Superconducting Material of YAgxBa2Cu3O7-δ, Y3AgxBa5Cu8O18- δ and Y7AgxBa11Cu18O40-δ”. Science Essence Journal, vol. 40, no. 1, May 2024, pp. 61-73, https://ejournals.swu.ac.th/index.php/sej/article/view/16004.