Genealogical Proof Standard: https://bcgcertification.org/ethics-standards/
Elizabeth Shown Mill’s research website: https://www.historicpathways.com/
Evidence Explained website (ESM): https://www.evidenceexplained.com/
Mastering Genealogical Proof by Thomas W Jones: https://www.amazon.com/Mastering-Genealogical-Proof-Thomas-Jones-ebook/dp/B00H48MNXS/ref=sr_1_1?ie=UTF8&qid=1490658486&sr=8-1&keywords=mastering+genealogical+proof
Genealogy Standards: https://www.amazon.com/Genealogy-Standards-Board-Certification-Genealogists-ebook/dp/B00INGE1CG/ref=pd_sim_351_1?_encoding=UTF8&psc=1&refRID=94HG4VPFJR7REEAK66PQ
Evidence Explained book (3rd edition): https://www.amazon.com/Evidence-Explained-History-Artifacts-Cyberspace-ebook/dp/B015YDZJ7Q/ref=pd_sim_351_2?_encoding=UTF8&psc=1&refRID=GVVW34VC54EQE9VPX373