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Utaiwan Koktatong. (2000) Comparison of knowledge, attitude and skill in condom application in male vocational students . Mahidol University/Bangkok.
Utaiwan Koktatong. Comparison of knowledge, attitude and skill in condom application in male vocational students. . Bangkok:Mahidol University, 2000.
Utaiwan Koktatong. (2000) Comparison of knowledge, attitude and skill in condom application in male vocational students . Mahidol University/Bangkok.