na INLIS000000000008872 20231202141927 231202||||||||| | ||| |||| || | 010-1223008872 id 344.01 344.01 HAD k Hadiwardoyo, Al. Purwa Kitab himpunan undang-undang hukum perburuhan Cet.2 Pradnya Paramita 1983 334 hlm. ; 21 cm. R13.28 - R13-0648 Hukum Perburuhan