इनमें से कौन सा पुस्तकालय वित्त (library finance) का एक प्रमुख स्रोत है?

In which financial estimation method is a minimum amount per head of population fixed for library funding?

The Kothari Commission's (1964-66) recommendation that a university should spend about Rs 25 per student and Rs 300 per teacher annually on its library is an example of which method of library budget estimation?