Mausse, F., F. Mabota, and A. Bugalho. “Assessment of Male Infertility Causes in Mozambique: A Case Study of Working Class Patients by IVF at Medicos Associados Clinica Cruz Azul Laboratory Maputo”. International Science and Technology Journal of Namibia, June 2014, pp. 100-6, https://journals.unam.edu.na/index.php/ISTJN/article/view/1130.