• https://repository.unilak.ac.id/items/ae870c2c-ebcb-41be-a27e-8e77598f7d42
• https://repository.unilak.ac.id/items/2c386ca5-4c20-48b9-b0cd-89e127cf6748
• https://repository.unilak.ac.id/items/d710033a-33be-4b54-8b3a-23ffabcec628
• https://repository.unilak.ac.id/items/95f2191b-959c-4c05-90c6-98d47fcb1676
• https://repository.unilak.ac.id/items/6a2316cf-8aad-4440-8073-b41856408474
• https://repository.unilak.ac.id/items/5d7542a0-2fe1-469a-94f4-5eebc7523eed
• https://repository.unilak.ac.id/items/c4e7176c-9918-4e34-8af9-a1c8d7ce091f
• https://repository.unilak.ac.id/items/4bf56e28-cdb0-4f37-8e64-082ab6d8e8ce