"Contextualising reproductive rights challenges: the Vietnam situation" - Women's Studies Forum, Vol.25, No.4, pp 443-453, 2002
by Heather Xiaoquan Zang and Catherine Locke p.450: "Mainstream information, education and communication campaigns, which are intended to disseminate information and knowledge of family planning and reproductive health, target couple and married women in their child bearing age, resulting the exclusion of those who fall outside such categories, including widowed or unmarried women and adolescent girls."