From Formal to Non-Formal(1st Edition) Education, Learning and Knowledge (Hardback) by Igor A. Aagar, PolonaKelava, Igor Z. Zagar Hardcover, 285 Pages, Published 2014 by Cambridge Scholars Publishing Unabridged ISBN-13: 978-1-4438-5910-3, ISBN: 1-4438-5910-9
"The monograph From Formal to Non-Formal: Education, Learning and Knowledge presents a review of selected aspects of non-formal education and learning, and is written by Antonio Fragoso, Petra Javrh, Polona Kelava, Taja Kramberger, Nives Licen, Marko Radovan, Drago B. Rotar, Klara Skubic Ermenc, Tadej Vidmar, Igor Z. Zagar, Tihomir Ziljak and Sabina Znidarsic Zagar. These authors are all anthropologists, sociologists, philosophers, polit ..."
Non-Formal Education Flexible Schooling Or Participatory Education? by Alan Rogers 316 Pages, Published 2005 by Springer Science+Business Media ISBN-13: 978-0-387-28693-8, ISBN: 0-387-28693-4
Serious Games Analytics(Reprint) Methodologies for Performance Measurement, Assessment, and Improvement (Advances in Game-Based Learning) by Christian Sebastian Loh , Yanyan Sheng , Dirk Ifenthaler Paperback, 477 Pages, Published 2016 by Springer ISBN-13: 978-3-319-38219-7, ISBN: 3-319-38219-5