ERIC is a great resource. It contains citations and links to published journal articles, and to informally published or self-archived work. If the item has an EJ accession number and doesn’t have a DOI treat it like a journal in print. If there is an ED accession number in the item’s record add (ED******) to the end of the citation with the ED number. Click the Download full text link and copy the articles’s web address.
Informally Published, Self-Archived Work
Kubota, K. (2007). “Soaking” models for learning: Analyzing Japanese learning/teaching process from a socio-historical perspective. (ED498566). https://files.eric.ed.gov/fulltext/ED498566.pdf
Alonzo, J., Gonzalez, M., & Tindal, G. (2013). The development of easyCBM Spanish literacy assessments for use in grades K-2 (Technical Report #1301). University of Oregon, Behavioral Research and Teaching (BRT). (ED545273). https://files.eric.ed.gov/fulltext/ED545273.pdf
(American Psychological Association, 2020, p. 337)