Accounting Standards and Regulations for the Type I Telecommunications Enterprises Article 19

In allocating indirectly attributable costs, assets, and revenues, an Operator may adopt sampling techniques to estimate the measures required by the driver analysis.
中文原文 第一類電信事業會計制度及會計處理準則第19條
經營者按動因分攤可間接歸屬成本、資產及收入時,得以抽樣方式推估動因之衡量指標數量。

English translation for reference only; the Chinese text prevails. Not legal advice.