Prehistoric investigations in northeast Thailand excavations at Ban Na Di, Non Kao Noi, Ban Muang Phruk, Ban Chiang Hian, Non Noi, Ban Kho Noi and site surveys in the Upper Songkhram and Middle Chi Valleys /
Higham, Charles.
Kijngam, Amphan.
Chantaratiyakarn, Payom.
Oxford BAR
1984