Chinese books for Chinlang 1, 2, 3, 21, 22 and 23

I have the following books for sale, each combo of textbook+workbook is $25

Chinlang 1 and 2:
Modern Chinese, Textbook 1A 2nd Edition
Modern Chinese, Workbook 1A 2nd Edition

Chinlang 2 and 3:
Modern Chinese, Textbook 1B 2nd Edition
Modern Chinese, Workbook 1B 2nd Edition

Chinlang 21 and 22:
Connections I: A Cognitive Approach to Intermediate Chinese
Connections I Workbook: A Cognitive Approach to Intermediate Chinese

Chinlang 22 and 23:
Connections II: A Cognitive Approach to Intermediate Chinese
Connections II Workbook: A Cognitive Approach to Intermediate Chinese