na INLIS000000000000888 20130612085316 Ind 010-061300000000888 Ind 542.1 542.1, Ima-k Imamkhasani, Sumanto Keselamatan kerja dalam laboratorium kimia, Sumanto Imamkhasani 1990 Jakarta x, 84 hlm, ilus, 21 cm Kimia Laboratorium NBPNMAT