1. The American Community School. (ACS). (n.d.).The outdoor education program. https://www.acs.edu.lb/page.cfm?p=1079
2. The Association for Forests, Development and Conservation (AFDC), & the Center for Educational Research and Development (CERD). (2012).The environmental education developed curriculum for the first educational cycle of primary education(i.e. grades 1, 2, & 3).
3. The Association for Forests, Development and Conservation (AFDC), & the Center for Educational Research and Development (CERD). (2014).The environmental education developed curriculum for the second educational cycle of primary education(i.e. grades 4, 5, & 6).
4. Influence of a Field Trip on the Attitude of Schoolchildren toward Unpopular Organisms: An Experience with Snakes