APA-viite (7. p.)

UM OAYK NOUMBA. (2004). MODEL FOR CALCULATING INTERCONNECTION COSTS IN TELECOMMUNICATIONS - CD. WORLD BANK.

Chicago-viite (17. p.)

UM OAYK NOUMBA. MODEL FOR CALCULATING INTERCONNECTION COSTS IN TELECOMMUNICATIONS - CD. WASHINGTON: WORLD BANK, 2004.

MLA-viite (9. p.)

UM OAYK NOUMBA. MODEL FOR CALCULATING INTERCONNECTION COSTS IN TELECOMMUNICATIONS - CD. WORLD BANK, 2004.

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