Amini-Philips, Isaac C. (1994) King Nworisa of Ekpeyeland (1830–1899): his life and times Riverside Communications, Port Harcourt, Nigeria,
ISBN978-31226-6-5 ;
Amini-Philips, Isaac C. (1998) Establishing a chronology for Ekpeye history Emhai Print. & Pub., Port Harcourt, Nigeria,
OCLC 53842667 ;
Ekine,Gift V. (2014)- A Concise History of Ekpeyeland and People, Osia Digital Press, Port Harcourt,Nigeria (
ISBN978-978-52044-4-5)
Ekine, Gift V. (2013)- A Dictionary of Ekpeyewords and Pronunciations, Osia Digital Press, Port Harcourt, Nigeria. (
ISBN978-978-52044-2-1)
Picton, John (February 1988) "Ekpeye masks and masking" African arts 21(2): pp. 46–53, 94
OCLC 40558650;
Clark, David J. (1971) Reading and Writing Ekpeye Institute of African Studies, University of Ibadan, Ibadan, Nigeria,
OCLC 2464074;