Section 8. The author of a work is the owner of copyright in the work of authorship subject to the following conditions :
(1) In the case of unpublished work, the author must be a Thai national or reside in Thailand or be a national of or reside in a country which is a member of the Convention on the protection of copyright of which Thailand is a member provided that the residence must be at all time or most of the time spent on the creation of the work ;
(2) In the case of published work, the first publication must be made in Thailand or in a country which is member of the Convention on the copyright protection of which Thailand is a member, or in the case the first publication is made outside Thailand or in a country which is not member of the Convention on the copyright protection of which Thailand is a member, if the publication of the said work is subsequently made in Thailand or in a country which is member of the Convention on the copyright protection of which Thailand is a member within thirty days as from the first publication, or the author has the qualifications as prescribed in (1) at the time