TY - BOOK TI - Data collection and analysis AU - Sapsford, Roger. AU - Jupp, Victor. SN - 076195046X (pbk.) PB - Sage in association with Open University PP - London ; Thousand Oaks, Calif. : Sage in association with Open University , 1996. PY - 1996 UR - https://library.korea.ac.kr/detail/?cid=CAT000045191838&ctype=m