Piralrat Pothong. 2002. Factors affecting elective cesarean section among nulliparous women. Field of Study Infectious Diseases, Mahidol University;
Piralrat Pothong. (2002) Factors affecting elective cesarean section among nulliparous women . Mahidol University/Bangkok.
Piralrat Pothong. Factors affecting elective cesarean section among nulliparous women. . Bangkok:Mahidol University, 2002.
Piralrat Pothong. (2002) Factors affecting elective cesarean section among nulliparous women . Mahidol University/Bangkok.