Le Roy, L. W. (1939). Some small foraminifers, ostracoda and otoliths from the Neogene ("Miocene") of the Rokan-Tapanoeli area, Central Sumatra. <em>Natuurkundig Tijdschrift voor Nederlandsch-Indië.</em> 99(6): 215-296.[details] Available for editors [request]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Bolivinita quadrilatera var. sumatrensis LeRoy, 1939 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=930586 on 2026-09-03
original descriptionLe Roy, L. W. (1939). Some small foraminifers, ostracoda and otoliths from the Neogene ("Miocene") of the Rokan-Tapanoeli area, Central Sumatra. <em>Natuurkundig Tijdschrift voor Nederlandsch-Indië.</em> 99(6): 215-296.[details] Available for editors [request]
basis of recordEllis, B. F.; Messina, A. R. (1940-2015). Catalogue of Foraminifera. <em>Micropaleontology Press, American Museum of Natural History, New York.</em> [details]
source of synonymySrinivasan, M. S.; Sharma, V. (1980). Schwager's Car Nicobar Foraminifera in the reports of the Novara Expedition - A revision. <em>Today and Tomorrow's Printers and Publishers, New Delhi.</em> 1-83.[details] Available for editors [request]