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Burgess, Mary (2017-03-27). "The BC Open Textbook Project". Open: The Philosophy and Practices that are Revolutionizing Education and Science. pp. 227–236. doi:10.5334/bbc.r. ISBN9781911529002.
"Can My K-12 School Save Money with Open Textbooks?" Department of Instructional Psychology and Technology and the Center for the Improvement of Teacher Education and Schooling at Brigham Young University. Research funded by The William and Flora Hewlett Foundation. 2011.
Christie, Jordanne (2020-05-01), "Using Pressbooks to Create Collaborative Open Textbooks", Technology Tools for Teaching in Higher Education, The Practical Handbook Series, Centre for Higher Education Research, Policy & Practice (CHERPP), retrieved 2021-06-25
Open Education Conference 2009. Interactive Open Textbook Panel Discussion. (Video, 1:02:08) Murugan Pal, CK12 Foundation; Eric Frank, Flat World Knowledge; Cable Green, WA State Board for Community and Technical Colleges; Barbara Illowsky, De Anza College; Steve Acker, Ohio State University.