이정환 현공남 조덕래 2018-11-15T07:39:41Z 2018-11-15T07:39:41Z 1981-12 C1981-11-07 http://repository.krei.re.kr/handle/2018.oak/12982 농기계원가조사 : 경운기 석유 8마력(대동공업) A research on the costs of agricultural machinery: cultivator 8 h.p. (Daedong Engineering) KREI 보고서 Lee, Junghwan Cho, Duckrae 9999-12-31 9999-12-31