Leon, A. (1999). Fundamentals of Information Technology (2nd.). Vikas Publishing House PVT LTD.
Chicago-čujuhus (17. p.)Leon, Alexis. Fundamentals of Information Technology. 2nd. Noida: Vikas Publishing House PVT LTD, 1999.
MLA-čujuhus (9. p.)Leon, Alexis. Fundamentals of Information Technology. 2nd. Vikas Publishing House PVT LTD, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.