Jurnal Octopus Volume 7 No. 2 (Juli-Desember 2018) Halaman ( 1-6) Halaman (7-11) Halaman (12-17) Halaman (18-23) Halaman (24-30) Halaman (31-39) Halaman (40-48) Halaman (49-55) admin2019-06-19T04:09:01+00:00