Haas, M. R. (1980). The Thai system of writing. Spoken Language Services.
Lua i Stíl Chicago (17ú heag.)Haas, Mary Rosamond. The Thai System of Writing. Ithaca, NY: Spoken Language Services, 1980.
Lua MLA (9ú heag.)Haas, Mary Rosamond. The Thai System of Writing. Spoken Language Services, 1980.
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