Data source: Khalaf-Prinz Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Ahmad Mostafa Abdallah Mohammad (January 2021). The Arabian Sea Blue Whale (Balaenoptera musculus arabica Khalaf, 2021): A New Subspecies from the Arabian Sea and Western Indian Ocean. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Volume 39, Number 193, 01 January 2021, pp. 17-46. Published by Prof. Dr. Norman Ali Khalaf Department for Environmental Research and Media, National Research Center, University of Palestine, Gaza, State of Palestine. https://www.researchgate.net/publication/348390612_The_Arabian_Sea_Blue_Whale_Balaenoptera_musculus_arabica_Khalaf_2021_A_New_Subspecies_from_the_Arabian_Sea_and_Western_Indian_Ocean
Data source: Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Ahmad Mostafa Abdallah Mohammad Khalaf-Prinz Sakerfalke von Jaffa (2020) The Chilean Blue Whale (Balaenoptera musculus chilensis Khalaf, 2020): A New Subspecies from Chile. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Volume 38, Number 185, 01 May 2020, pp. 40-63. Published by Prof. Dr. Norman Ali Khalaf Department for Environmental Research and Media, National Research Center, University of Palestine, Gaza, State of Palestine https://www.academia.edu/42986554/The_Chilean_Blue_Whale_Balaenoptera_musculus_chilensis_Khalaf_2020_A_New_Subspecies_from_Chile