CATAPULT. (1994). Microsoft Fox Pro Versi 2.5 For Windows Step By Step Catapult. PT. Elex Media Komputindo.
Cita Chicago Style (17a ed.)CATAPULT. Microsoft Fox Pro Versi 2.5 For Windows Step By Step Catapult. PT. Elex Media Komputindo, 1994.
Cita MLA (8a ed.)CATAPULT. Microsoft Fox Pro Versi 2.5 For Windows Step By Step Catapult. PT. Elex Media Komputindo, 1994.
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