1. Berhane A, Biadgilign S, Amberbir A, Morankar S, Berhane A, Deribe K. Men’s knowledge and spousal communication about modern family planning methods in Ethiopia. Afr J Reprod Health. 2011;15:24–33.
2. National Bureau of Statistics (NBS) [Tanzania] and ICF Macro. Tanzania Demographic and Health Survey 2010 [Internet]. National Bureau of Statistics: Dar es Salaam; 2011. Available from: http://dhsprogram.com/pubs/pdf/FR243/FR243[24June2011].pdf .
3. Tensou B, Hailemariam A, Reniers G. The prevalence of Covert use of contraceptives in Nazareth/Adama town. [Internet]. 2005. Available from: http://uaps2007.princeton.edu/papers/70582 . Accessed 3 Mar 2015.
4. Nasir JA, Tahir MH, Zaidi AA. Contraceptive attitude and behaviour among University men: a study from Punjab, Pakistan. J Ayub Med Coll Abbottabad [Internet]. 2010;22:125–8. Available from: http://www.ayubmed.edu.pk/JAMC/PAST/22-1/Nasir.pdf .
5. Tilahun T, Coene G, Luchters S, Kassahun W, Leye E. Family planning knowledge, attitude and practice among married couples in Jimma Zone, Ethiopia. PLoS One. 2013;8:1–8.