The author or, when the author has died, the heirs of the author shall be entitled to litigate for the enforcement of his rights throughout the term of copyright protection, unless otherwise agreed in writing.For an unofficial English translation of the Civil and Commercial Code B.E.2535 (1992), please seehttps://library.siam-legal.com/thai-civil-and-commercial-code/For unofficial English translation of the Copyright Act B.E.2537 (1994), please see https://www.ipthailand.go.th/th/dip-law-2/item/copyright-act-b-e-2537-1994.htmlFor an unofficial English translation of the Trademark Act B.E.2534, please seehttps://www.ipthailand.go.th/images/781/___.___1_1.pdf