| Type |  Book |
| ชื่อเรื่อง | Clear grammar student workbook : more activities for spoken and written communication / Keith S. Folse ... [et al.] |
| ISBN | 047208724X (pbk. : v.1) |
| | 0472087266 (pbk. : v.2) |
| | 0472087290 (pbk. : v.3) |
| พิมพลักษณ์ | Ann Arbor : University of Michigan Press, c2001 |
| รูปเล่ม | 3 v. : ill |
| หัวเรื่อง | English language --Study and teaching --Foreign speakers [] |
| | English language --Study and teaching --United States [] |
| | English language --Textbooks for foreign speakers [] |