A model for calculating interconnection costs in telecommunications / prepared by Paul Noumba Um... [et al.]
A model for calculating interconnection costs in telecommunications / prepared by Paul Noumba Um... [et al.]
. - New York : The World Bank, cop. 2004
. - X, 67 p. : il., gráficos 28 cm
0-8213-5671-2 Brochado
338.47(6)