Apple store users cannot find Amazon's audiobook service Audible and several other phone apps used for reading the holy books of Islam and Christianity on the platform in mainland China. This is the latest example of the impact the country's tightened rules for internet firms have had on services. Audible removed its app from the Apple store in mainland China last month "due to permit requirements," the company said on Friday. Unlike LinkedIn, which has been offering a specialized Chinese service since 2014, Amazon-owned Audible said it does not have a dedicated service for customers in China. The makers of…