Identification of genetic markers between barbonymus schwanenfeldii (Bleeker 1850) and barbonymus gonionotus (Bleeker 1850) using restriction fragment length polymorphism (RFLP) and sequencing analysis of cytochrome C oxidase I (COI) mitochondrial DNA fragment - Sabrina, Haron. (Universiti Malaysia Sarawak (UNIMAS), 2004)