Workbook - Workbooks are paperback textbooks issued to students. Workbooks are usually filled with practice problems, with empty space so that the answers can be written directly in the book.
Refrence book - Use reference books (also called reference or background sources, or resources) to get quick specific facts or information or an overview of a subject. Some examples of reference sources are: dictionaries, encyclopedias, bibliographies, almanacs, directories, atlases, and handbooks. These can be online or in print.
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Workbook - Workbooks are paperback textbooks issued to students. Workbooks are usually filled with practice problems, with empty space so that the answers can be written directly in the book.
Refrence book - Use reference books (also called reference or background sources, or resources) to get quick specific facts or information or an overview of a subject. Some examples of reference sources are: dictionaries, encyclopedias, bibliographies, almanacs, directories, atlases, and handbooks. These can be online or in print.
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In addition, teachers may use these texts as textbooks.