Pranadya, Ni Made, Setyawati, Iriani, DAN Yulihastuti, Dwi. " Number of spermatogenic cells and testes histology of mice (Mus musculus L.) after treated with different times and intervals of red calliandra (Calliandra calothyrsus Meissn.) leaf extract" Jurnal Biologi Udayana [Online], Volume 23 Nomor 1 (29 June 2019)