@phdthesis{oai:u-ryukyu.repo.nii.ac.jp:02019082,
 author = {RUKSANA, SABINA},
 school = {琉球大学},
 title = {The sexual plasticity of ovary in two species of gonochoristic fish, the Nile tilapia Oreochromis niloticus and the goldlined spinefoot Siganus guttatus}
}