Book The Anglo-Siamese Negotiations, 1900-1909 Thamsook Numnonda ISBN 978-616-341-177-8 (Download .pdf below)

"While covering the issue of extraterritoriality, this book focuses on the relations and negotiations between Siam and Britain during 1900-1909, which centred on such questions as the abrogation of the Anglo-Siamese Secret Convention of 1897, Siamese suzerainty over the Four Northern Malay States, namely Kelantan, Trengganu, Kedah and Perlis, the abandonment of British extraterritoriality in Siam and the arrangements for the construction of the Malay Peninsula Railway."

Excerpt from the foreword