Ayad, Mohamed ; Wilkinson, Marilyn ; McNiff, Melissa. <br/><br/>
Sources of contraceptive methods. 

 - 49p. 
 - (Demographic and health surveys comparative studies ; no. 11) .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Contraception--Statistics<br/>Family planning--Statistics<br/>Developing countries