<i>Tamra Noppharat</i> ("Book on the Nine Gems"), being a treatise concerning the <a href="https://en.wikipedia.org/wiki/Navaratna" class="extiw" title="w:Navaratna">nine gems</a>, originally composed by an unknown author, later revised by <a href="https://en.wikipedia.org/wiki/Prayurawongse" class="extiw" title="w:Prayurawongse">Phraya Suriwongmontri (Dit Bunnak)</a> and his team before being presented to King <a href="https://en.wikipedia.org/wiki/Rama_II" class="extiw" title="w:Rama II">Rama II</a> of Bangkok. Upon the death of Dit Bunnak, the manuscript came into the possession of his daughter, Noen Bunnak. After the death of Noen Bunnak, the manuscript devolved on the royal library of the <a href="https://en.wikipedia.org/wiki/Bang_Khun_Phrom_Palace" class="extiw" title="w:Bang Khun Phrom Palace">Bang Khun Phrom Palace</a>. The work was first published as this book by the command of Queen <a href="https://en.wikipedia.org/wiki/Sukhumala_Marasri" class="extiw" title="w:Sukhumala Marasri">Sukhuman Marasi</a> at the request of two noblemen, Phra Saengsitthikan (Saeng Nonthasut) and Nai Naraphiban (Sin Thesaphaet).
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Unknown author<span style="display: none;">Unknown author</span></div>
<i>ตำรานพรัตน์</i>. (๒๔๖๔). พระนคร: โรงพิมพ์โสภณพิพรรฒธนากร. (พระนางเจ้าสุขุมาลมารศรี พระราชเทวี ทรงแจกในงานทรงบำเพ็ญพระกุศลฉลองพระชนมายุครบ ๖๐ พระพรรษา วันที่ ๑๑ พฤษภาคม พ.ศ. ๒๔๖๔).