http://www.erowid.org/chemicals/dmt/extraction_guide1/dmt_extraction_guide1.shtml (http://www.erowid.org/chemicals/dmt/extraction_guide1/dmt_extraction_guide1.shtml)
https://www.thevespiary.org/rhodium/Rhodium/chemistry/mescaline.extraction.html (https://www.thevespiary.org/rhodium/Rhodium/chemistry/mescaline.extraction.html)