The present book consists of the following:
<ol><li>A preface by Prince <a href="https://en.wikipedia.org/wiki/Damrong_Rajanubhab" class="extiw" title="w:Damrong Rajanubhab">Damrong Rachanuphap</a>, dated 1 April 2463 BE (1920 CE).</li>
<li><i>Ratchanitisat</i> (Sanskrit: Rājanītiśāstra; literally "Royal Legal Science"), a Hindu treatise composed by two Brahmans, Anantayan (Pali: Anantañāna) and Khanamitsaka (Pali: Gaṇāmissaka). Siam obtained a copy in the Pali language from Burma during the reign of King <a href="https://en.wikipedia.org/wiki/Rama_I" class="extiw" title="w:Rama I">Rama I</a> of Siam. Prince <a href="https://en.wikipedia.org/wiki/Damrong_Rajanubhab" class="extiw" title="w:Damrong Rajanubhab">Damrong Rachanuphap</a> suggested that the work must have originally been composed in Sanskrit and might have been translated into Pali by a Burmese scholar prior to being obtained from Burma by Siam. King Rama I had the Pali version translated into Thai by a Buddhist monk, Phra Maha Kaeo of Wat Ratchaburana (aka Wat Liap, Bangkok), and proofed by another Buddhist monk, Phra Thamma-udom (personal name: Mi; later appointed Supreme Patriarch of the Siam) of the same monastery. The translation was carried out in the Year of the Bull, 1167 LE (2348 BE, 1805/06 CE). However, the Pali manuscript obtained in the reign of King Rama I only contained the first part. The Wachirayan Royal Library later obtained another complete manuscript from Burma and had a Siamese nobleman, Phra Yanawichit (Sit Lotchananon), translate the remaining part. The full translation was printed for the first time as this book.</li></ol><u>Note</u>: "LE" refers to <a href="https://en.wikipedia.org/wiki/Chula_Sakarat" class="extiw" title="w:Chula Sakarat">Lesser Era</a>; "BE", <a href="https://en.wikipedia.org/wiki/Buddhist_Era" class="extiw" title="w:Buddhist Era">Buddhist Era</a>; and "CE", <a href="https://en.wikipedia.org/wiki/Common_Era" class="extiw" title="w:Common Era">Common Era</a>.
<bdi><a href="https://www.wikidata.org/wiki/Q96971484" class="extiw" title="d:Q96971484"><span title="library in Thailand">Wachirayan Royal Library</span></a>
</bdi>
หอพระสมุดวชิรญาณ. (๒๔๖๓). <i>ราชนิติสาสตร</i>. พระนคร: โรงพิมพ์โสภณพิพรรฒธนากร. [คุณหญิงชื้น ธรรมสารเวทย์ พิมพ์ในงานพระราชทานเพลิงศพมหาอำมาตย์ตรี พระยาธรรมสารเวทย์ วิเศษภักดี (ทองดี ธรรมศักดิ์) ป,ม. ท,จ,ว. ต,ช. เมื่อปีวอก พ.ศ. ๒๔๖๓].