Manpower refers to all the staff who is appointed in different positions for performing administrative, clerical, as well as technical jobs. It is also known as office personnel.
Materials refer to all durable and non-materials items required by the office to perform all its activities, accurate and systematic manner.
The revenue which is earned by selling and distributing goods and services on regular basis is called sources of income.
Transportation means the process of physical movement of products and people from one place to another place.
The means which are used to transport products and people from one place to another place inside or outside the country is called the means of transportation.
Communication is a systematic and continuous process of telling, listening and understanding the official information.