Schemes including Acanthixalus sonjae

• Amphibian Species of the World 5.6 Acanthixalus sonjae
• IUCN Red List of Threatened Species. Version 2012.1 Acanthixalus sonjae
• Amphibiaweb. 2012 Acanthixalus sonjae
• Amphibian Species of the World 5.5 Acanthixalus sonjae
• IUCN Red List of Threatened Species. Version 2012.2 (56054) Acanthixalus sonjae
• GBIF (2426589) Acanthixalus sonjae
• Amphibian Species of the World 6.0 Acanthixalus sonjae