Thanyaporn Intra. 2004. Knowledge and attitude toward use of emergency contraceptive pills among vocational students. Field of Study Human Reproduction and Population Planning, Mahidol University;
Thanyaporn Intra. (2004) Knowledge and attitude toward use of emergency contraceptive pills among vocational students . Mahidol University/Bangkok.
Thanyaporn Intra. Knowledge and attitude toward use of emergency contraceptive pills among vocational students. . Bangkok:Mahidol University, 2004.
Thanyaporn Intra. (2004) Knowledge and attitude toward use of emergency contraceptive pills among vocational students . Mahidol University/Bangkok.