https://www.oxnardcollege.edu/faculty-staff/instructional-support-services/oer-ztc
OER and Zero Textbook Cost (ZTC) | Oxnard College
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https://gemstatewire.com/aagard-and-wilson-present-research-on-zero-textbook-cost-degrees-at-oer-west/
Aagard and Wilson present research on zero-textbook-cost degrees at OER West - Gem State Wire
Apr 22, 2026 - Boise State University's Hans Aagard and Greg Wilson from College of Western Idaho recently presented their work on creating zero-textbook-cost degree pathw
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https://chabotcollege.edu/students/ztc/index.php
Zero Textbook Cost - Chabot College
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