Wanpen Sornsilp. 2007. Factors related to the role of public health nurses in promoting breastfeeding practice in the public health centers, Nonthaburi province. Field of Study Public Health Nursing, Mahidol University;

Wanpen Sornsilp. Factors related to the role of public health nurses in promoting breastfeeding practice in the public health centers, Nonthaburi province. . Bangkok:Mahidol University, 2007.

Wanpen Sornsilp. (2007) Factors related to the role of public health nurses in promoting breastfeeding practice in the public health centers, Nonthaburi province . Mahidol University/Bangkok.