Prapansilp, W., P. Rirattanapong, R. Surarit, and K. Vongsavan. “Fluoride release from different powder liquid ratios of Fuji VII”. Mahidol Dental Journal, vol. 37, no. 2, Oct. 2020, pp. 217-22, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/246857.