@book { OMUMUTheIgboLifevalueAChallengetoHumanLifeIssueToday,
    title = "«OMUMU» – The Igbo Life-value: A Challenge to Human Life Issue Today",
    author = "Peter Chidi {Okuma}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1105483"
}