TY - BOOK AU - Ranee Rajnapong TI - A delphi investigation of staff development knowledge and skills needed for primary school principals in Thailand PY - 1991/// CY - Ann Arbor, Mich. PB - University Microfilms International KW - Teachers KW - In-service training KW - Thailand KW - Education KW - Personnel service N1 - Thesis (Ph.D.) - University of North Texas, 1991 ER -