共 20 条
- [2] COVEY LS, 1981, J OCCUP ENVIRON MED, V23, P537
- [3] SMOKING IN THE WORKPLACE - A HAZARD IGNORED [J]. AMERICAN JOURNAL OF PUBLIC HEALTH, 1980, 70 (06) : 575 - 576
- [5] SHAH BV, 1981, SESUDAAN STANDARD ER
- [6] SIEBER WK, 1986, AM STATISTICAL ASS P, P210