1 : http://international-relations-what-to-know.blogspot.com/

2 : https://thailawonline.com/th/others/international-law.html#

1 : http://old-book.ru.ac.th/e-book/inside/html/dlbook.asp?code=LW104(49)

1 : http://nongkoo.go.th/wp-content/uploads/2019/06/%E0%B8%A3%E0%B8%B1%E0%B8%90%E0%B8%98%E0%B8%A3%E0%B8%A3%E0%B8%A1%E0%B8%99%E0%B8%B9%E0%B8%8D-60.pdf

1 : http://www.ratchakitcha.soc.go.th/DATA/PDF/2560/A/040/1.PDF

1 : https://www.parliament.go.th/ewtadmin/ewt/elaw_parcy/ewt_dl_link.php?nid=1795

1 : https://www.baanjomyut.com/library_4/politics/04_2.html

1 : https://library2.parliament.go.th/giventake/thaicons.html

1 : https://www.baanjomyut.com/library_3/extension-4/knowledge_of_the_law/08.html