W. Tripanichkul, W. Singhaniyom, W. Vuthiphanchai, and S. Jueng-udomcharoen, “A Study on Spermatogenesis of the Giant Tiger Prawn, Penaeus monodon Fabricius (Decapoda)”, Agr. Nat. Resour., vol. 31, no. 2, pp. 192–198, Jun. 1997.