TY - GEN AU - 이정환 PY - 1981/12 UR - http://repository.krei.re.kr/handle/2018.oak/12977 TI - 농기계원가조사 : PVC 호스 80mm100mm(한미실업) TT - A research on the costs of agricultural machines: PVC hose, 80mm & 100mm(Hanmi Industrial) TA - Lee, Junghwan TA - Cho, Duckrae ER -