Usa Sukhaphan. 2001. Marital relationship, newborn behavior, and role stress of first-child mothers. Field of Study Maternal and Child Nursing, Mahidol University;

Usa Sukhaphan. Marital relationship, newborn behavior, and role stress of first-child mothers. . Bangkok:Mahidol University, 2001.

Usa Sukhaphan. (2001) Marital relationship, newborn behavior, and role stress of first-child mothers . Mahidol University/Bangkok.