共 50 条
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- [46] ORGANIZATION OF FARM MANAGEMENT AND OUTLOOK INFORMATION FOR EFFECTIVE EXTENSION USE JOURNAL OF FARM ECONOMICS, 1930, 12 (03): : 367 - 371
- [47] SOME RELATIONSHIPS BETWEEN MULTI-FARM MACHINERY USE AND FARM DEVELOPMENT LANDTECHNIK, 1978, 33 (12): : 548 - 550
- [48] GIVING A MANAGEMENT ORIENTATION TO EXTENSION WORK - DISCUSSION JOURNAL OF FARM ECONOMICS, 1959, 41 (05): : 1430 - 1434