na INLIS000000000000844 20231005115741 0010-0421000844 231005 0 ind Rules For The Classification and Construction of Seagoing Steel Ships: Vol. 6 Rules for Hull Classification Biro Klasifikasi Indonesia Jakarta : Biro Klasifikasi Indonesia, 1990 x :ilus.; 30 cm. 623.8 REF / BIR r k.1 Tentang peraturan2 klasifikasi dan konstruksi kapal 623.8 REF KAPAL,GALANGAN