The Effect of Injection with Papaya (Carica Papaya L.) Seed Extract on Sperm Concentration and Spermatogenic Cells of Male Rats (Rattus norvegicus L.) Strain LMR - Yurnadi Yurnadi; Bagian Biologi Kedokteran, Fakultas Kedokteran, Universitas Indonesia, Jakarta 10430 (Directorate of Research and Public Services Universitas Indonesia, 2016)