參考書

Noun

 * 1) reference book book providing factual information
 * 2) supplementary teaching material, a book supporting students to learn the subject-specific subject besides textbook
 * 1) supplementary teaching material, a book supporting students to learn the subject-specific subject besides textbook

Synonyms

 * (supplementary teaching material)
 * (supplementary teaching material)
 * (supplementary teaching material)
 * (supplementary teaching material)