A dictionary of Thai words; originally called <i>Photchananukrom</i> ("Dictionary"), compiled by a committee headed by Khun Phrasoet-aksonnit (Phae Talalak), which started working in the year 2427 BE (1884/85 CE); published by the Education Department for the first time in the year 2434 BE (1891/92 CE) and for the second time in the year 2444 BE (1901/02 CE); later revised by a committee of the Royal Scholars' Department headed by Phra Uppakitsinlapasan (Nim Kanchanachiwa) and renamed <i>Pathanukrom Nak-rian</i> ("Students' Dictionary"), published for the first time (or third overall) in the year 2463 BE (1920/21 CE); again revised by the Department of Textbooks and published for the second time (or fourth overall) as the present book, called <i>Pathanukrom</i> ("Dictionary").
<bdi><a href="https://en.wikipedia.org/wiki/en:Ministry_of_Education_(Thailand)" class="extiw" title="w:en:Ministry of Education (Thailand)"><span title="Thai ministry responsible for education">Ministry of Education of Thailand</span></a>
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กระทรวงธรรมการ, กรมตำรา. (๒๔๗๐). <i>ปทานุกรม</i>. (พิมพ์ครั้งที่ ๒). พระนคร: กระทรวงธรรมการ, โรงพิมพ์กรมตำรา.