Siraporn Kruiroongroj. (2013) Knowledge, acceptability and willngmess to pay for HPV vaccination among mothers of daughters Aged 12-15 years in Bangkok. Mahidol University:ม.ป.ท.Siraporn Kruiroongroj. 2013. Knowledge, acceptability and willngmess to pay for HPV vaccination among mothers of daughters Aged 12-15 years in Bangkok. ม.ป.ท.:Mahidol University;Siraporn Kruiroongroj. Knowledge, acceptability and willngmess to pay for HPV vaccination among mothers of daughters Aged 12-15 years in Bangkok. ม.ป.ท.:Mahidol University, 2013. Print.