• https://repository.unilak.ac.id/items/46c35630-ca6e-410e-91c9-2d77680c4f14
• https://repository.unilak.ac.id/items/56128a3c-579d-4b19-937c-02ba63fe3cac
• https://repository.unilak.ac.id/items/b2a073aa-71e9-4070-afcd-9d2447796a7d
• https://repository.unilak.ac.id/items/d58e2202-457f-49c5-a305-cd167f10ecbe
• https://repository.unilak.ac.id/items/6a1d992e-1000-4110-8bcb-3ef368b896d1
• https://repository.unilak.ac.id/items/4b8d308d-5d3e-4130-9490-5a8118d5f448
• https://repository.unilak.ac.id/items/181a2ade-c1e4-45b1-b5e3-4909a97ce8c2
• https://repository.unilak.ac.id/items/ea275af0-c5c6-440c-87d2-43a471ce3a63