Kalipa, Z. et al. 2017. Factors Influencing Adherence to Folic Acid and Ferrous Sulphate Nutritional Intake among Pregnant Teenagers in Buffalo City Municipality, South Africa. Pakistan Journal of Nutrition. 16, 7 (Jun. 2017), 531–537. DOI:https://doi.org/10.3923/pjn.2017.531.537.