HadisoesHo, S., M. Meixner, and F. Ruttner Ruttner. “GEOGRAPHIC VARIATION WITHIN Apis Koschevnikovi BUTTEL-REEPEN, 1906, IN BORNEO”. Treubia 31, no. 3 (March 7, 2025): 299–305. Accessed December 6, 2025. https://ejournal.brin.go.id/treubia/article/view/9440.