RYAN CHRISTOPHER. (2002). HIGH PERFORMANCE INTERACTIVE MARKETING. VIVA BOOKS PVT.LTD.
Chicago-čujuhus (17. p.)RYAN CHRISTOPHER. HIGH PERFORMANCE INTERACTIVE MARKETING. MUMBAI: VIVA BOOKS PVT.LTD, 2002.
MLA-čujuhus (9. p.)RYAN CHRISTOPHER. HIGH PERFORMANCE INTERACTIVE MARKETING. VIVA BOOKS PVT.LTD, 2002.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.