Poland : from the Baltic to the Carpathians
Arkady, 1975
 Buku Teks SO
Gielzynski, Woijciech
Poland
Arkady, 1994
 Buku Teks SO
M. Jufri Kadir
Kaliningrad sebagai representatif rusia di kawasan baltik: konflik rusia dengan polandia nato dan uni eropa tahun 2000-2017 = Kaliningrad as a representative of russia in the baltic region russia conflict with poland nato and the european union 2000-2017
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2017
 UI - Skripsi Membership
Kulinski, Karol
Carbon cycling in the Baltic Sea
Springer, 2012
 eBooks
Biological Oceanography of the Baltic Sea
Springer Nature, 2017
 eBooks