2684 93 10 TIM PIP Semarang Primary Author mixed material SEMARANG Politeknik Ilmu Pelayaran 2008 Kemp Primary Author Young Additional Author mixed material 853090467 London Stanford Maritime London 1972 Anonim Primary Author mixed material SEMARANG Politeknik Ilmu Pelayaran s.a Hadi Supriyono Primary Author mixed material SEMARANG Balai Pendidikan dan Latihan Pelayaran s.a Kemp Primary Author Young Additional Author mixed material s.l Heinemann s.a International Maritime Organization Primary Author mixed material 9280113348 London International Maritime Organization 1995 Arso Martopo Primary Author mixed material SEMARANG Balai Pendidikan dan Latihan Pelayaran 1992 Julitasra Primary Author mixed material s.l s.n s.a Akmal Ismail Primary Author mixed material s.l s.n s.a Dewata Primary Author mixed material jakarta BP3IP s.a