@book { OfficialBilingualismandLinguisticCommunicationinCameroonBilinguismeofficieletcommunicationlinguistiqueauCameroun,
    title = "Official Bilingualism and Linguistic Communication in Cameroon- Bilinguisme officiel et communication linguistique au Cameroun",
    author = "George {Echu} and Allan W. {Grundstrom}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1090834"
}