Gosling, M. (1999). Learn about information (2nd ed.). Book Promotion and Service Co., Ltd.
Lua i Stíl Chicago (17ú heag.)Gosling, Mary. Learn About Information. 2nd ed. Bangkok: Book Promotion and Service Co., Ltd, 1999.
Lua MLA (9ú heag.)Gosling, Mary. Learn About Information. 2nd ed. Book Promotion and Service Co., Ltd, 1999.
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