• http://repository.ipb.ac.id/handle/123456789/158710
• http://repository.ipb.ac.id/handle/123456789/125706
• http://repository.ipb.ac.id/handle/123456789/133301
• http://repository.ipb.ac.id/handle/123456789/125763
• http://repository.ipb.ac.id/handle/123456789/152796
• http://repository.ipb.ac.id/handle/123456789/125708
• http://repository.ipb.ac.id/handle/123456789/152811