<CATAPULT, I. Microsoft MS-DOS step by step versi 6.0 dan 6.2. Elex Media Komputindo.
Chicago Style (17th ed.) Citation<CATAPULT, INC.>. Microsoft MS-DOS Step by Step Versi 6.0 Dan 6.2. Elex Media Komputindo.
MLA (8th ed.) Citation<CATAPULT, INC.>. Microsoft MS-DOS Step by Step Versi 6.0 Dan 6.2. Elex Media Komputindo.
Warning: These citations may not always be 100% accurate.