Phuong, N. H., and A. Panza. “Facilitating Factors and Barriers for Intention to Get HPV Vaccine Among Young Female in Hanoi, Vietnam”. Journal of Health Research, vol. 25, no. 3, Mar. 2017, pp. 117-22, https://he01.tci-thaijo.org/index.php/jhealthres/article/view/81155.