i am writing my pgd project on human resource development in public service and cant seem to get my hands on the concepts and thoeries of human resource development. pls help with these, what are the concepts of human resource development and what ar

i am writing my pgd project on human resource development in public service and cant seem to get my hands on the concepts and thoeries of human resource development. pls help with these, what are the concepts of human resource development and what are the thoeries of human resource development