Lets please avoid rules lawyering the topic to death here  The article is improved by the presence of these sources  Respectfully Primary sources are not specifically banned under WPWPNOTRS  Their use in a list format in this case adequately avoids the pitfalls cited in WPWPNOTRS regarding the use of primary sources  That page says specifically that secondary sources are preferred but does not ban primary sources  No claim regarding the information in these sources is provided by the Young Living article and the sources do not represent a large block of material