共 50 条
- [22] PRINCIPLES AND PRACTICE OF AGRICULTURAL RESEARCH [J]. JOURNAL OF THE ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS, 1965, 48 (02): : 456 - +
- [25] INTRODUCTION TO THE REPERTORY GRID TECHNIQUE, VOL 1, PRINCIPLES AND METHODS, VOL 2, CLINICAL RESEARCH AND PRACTICE - GERMAN - SCHEER,JW, CATINA,A [J]. ZEITSCHRIFT FUR KLINISCHE PSYCHOLOGIE PSYCHIATRIE UND PSYCHOTHERAPIE, 1994, 42 (04): : 394 - 395
- [28] Information retrieval: Introduction to principles and methods [J]. NFD INFORMATION-WISSENSCHAFT UND PRAXIS, 1998, 49 (06): : 379 - 379