Here are some suggestions on how you may choose to cite materials from eClass, etc. in APA format:
University of Alberta Library. (2013, September). Tutorial 1.1: Fining research topic ideas [eClass
Online Tutorial]. Retrieved from https://eclass.srv.ualberta.ca...
From the APA Style Experts:
"Technically, material that is available only from the instructor via course management software such as Blackboard should be cited as a personal communication (see section 6.20 of the Publication Manual and the APA Style Guide to Electronic References, p. 31). This is because, in APA Style, references must lead to recoverable data.
However, if you are writing an assignment for a class whose members all have access to the same website, it would be reasonable to bend the rules and use the URL for the relevant materials"