Oi SA Operating Expenses 2010-2021 | QIBRD

Oi SA operating expenses from 2010 to 2021. Operating expenses can be defined as the sum of all operating expenses for the given industry.

Oi SA Operating Expenses 2010-2021 | QIBRD

Oi SA operating expenses from 2010 to 2021. Operating expenses can be defined as the sum of all operating expenses for the given industry.