Ichishima, H.; Kimura, M. (2005). "Harborophocoena toyoshimai, a new early Pliocene porpoise (Cetacea, Phocoenidae) from Hokkaido, Japan". Journal of Vertebrate Paleontology. 25 (3): 655–664. doi:10.1671/0272-4634(2005)025[0655:htanep]2.0.co;2. S2CID85421985.
Wilkinson, Richard James (1932). "gondal". A Malay-English dictionary (romanised). II. Mytilini, Yunani: Salavopoulos & Kinderlis. m/s. 373 – melalui TROVE, Perpustakaan Negara Australia.
Wilkinson, Richard James (1932). "lomba". A Malay-English dictionary (romanised). II. Mytilini, Yunani: Salavopoulos & Kinderlis. m/s. 46 – melalui TROVE, Perpustakaan Negara Australia.
semanticscholar.org
api.semanticscholar.org
Ichishima, H.; Kimura, M. (2005). "Harborophocoena toyoshimai, a new early Pliocene porpoise (Cetacea, Phocoenidae) from Hokkaido, Japan". Journal of Vertebrate Paleontology. 25 (3): 655–664. doi:10.1671/0272-4634(2005)025[0655:htanep]2.0.co;2. S2CID85421985.