Electronic/World Wide Web>Internet Article:  Hubert, Bert (2016), DNA seen through the eyes of a coder, Retrieved on 2018-03-20

Source Material [ds9a.nl]

Electronic/World Wide Web>Message Posted to a Newsgroup:  Zuch, Lauren (8/22/2002), Teacher Metaphor, Retrieved on 2015-04-04

Source Material [www.ed.psu.edu]

Periodicals>Journal Article:  Baptist, Karen Wilson (2002), The Garden as Metaphor for Curriculum, Teacher Education Quarterly, Fall 2002, Retrieved on 2015-02-19

Electronic/World Wide Web>Message Posted to Online Forum/Discussion Group:  lizwool, (12/03/2005), New game review - REAL LIFE, olganon.org, Retrieved on 2013-11-16

Source Material [www.olganon.org]