Alberta Education. (2007). Social studies kindergarten to grade 12 (Grade 6) [Program of studies]. https://education.alberta.ca/media/159597/program-of-studies-grade-6.pdf
In text: (Alberta Education, 2007)
Alberta Education. (2016). Mathematics kindergarten to grade 9 [Program of studies]. https://education.alberta.ca/media/3115252/2016_k_to_9_math_pos.pdf
In text: (Alberta Education, 2016)
The "author" of resources such as reports or websites can be an organization or governing body (such as a government department). In these cases, the organization is the author and should be listed as such in your final citation.
An online retrieval date is only required for an unarchived source that is likely to change, such as a Twitter profile or Facebook page, or a webpage with no date.
(See section 9.16 of the APA Publication Manual, 7th ed.)