2021 White Papers by Marcus P. Zillman, M.S., A.M.H.A. http://www.WhitePapers.us/
I have updated all my white papers for 2021 and have a list of them that are freely and readily available. Feel free to use for your next projects or academic pursuits! My 50+ Subject Tracers have also been updated for 2021 and freely and readily available by clicking here.