Gottfried, B. S. (1995). Schaum's outline of theory and problems of programming with BASIC: Incliding expanded microcomputer BASIC section. - 3rd ed. , (3rd ed. ,.). Tata McGraw-Hill publishing company.

Gottfried, Byron S. Schaum's Outline of Theory and Problems of Programming with BASIC: Incliding Expanded Microcomputer BASIC Section. - 3rd Ed. ,. 3rd ed. ,. New Delhi: Tata McGraw-Hill publishing company, 1995.

Gottfried, Byron S. Schaum's Outline of Theory and Problems of Programming with BASIC: Incliding Expanded Microcomputer BASIC Section. - 3rd Ed. ,. 3rd ed. ,. Tata McGraw-Hill publishing company, 1995.