Quang, Dinh, 		Lam, Tran, AND 		Tien, Nguyen.
" The Relative Gut Length and Gastro-Somatic Indices  of the Mudskipper Periophthalmodon septemradiatus (Hamilton, 1822) from the Hau River" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], Volume 34 Number 3 (24 September 2018)