Kroë 1930 Memorie van Overgave van G. BrillControleur Kroë kepada Asisten ResidenM. R. Brouwer. [s.l.] : Universitas Muhammadiyah Metro,2026. Disponível em: https://books.ummetro.ac.id/index.php/primary/catalog/book/74. Acesso em: 14 oct. 2026.