2Nation,I. S. P.Materials for teaching vocabulary. Developing materials for language teaching . 2003
3Grant Neville.Making the Most of Your Textbook. . 1987
4Nation I S P.Teaching and Learning Vocabulary. . 2004
5Ellis,N."Vocabulary acquisition: word structure, collocation, word-class, and meaning.". Vocabulary: description, Acquisition and Pedagogy . 2002
6Coniam,D.‘A lexical view of the language needed by primary students in Hong Kong: an examination of word frequency in English language primary material‘. CUHK Journal of Primary Education . 1996