@book { GroundworkinShiyeyiGrammarwithaShiyeyiEnglishGlossary, title = "Groundwork in Shiyeyi Grammar with a Shiyeyi-English Glossary", author = "Stephen {Lukusa}", year = "2021", publisher = "Peter Lang Verlag", address = "Berlin, Germany", url = "https://www.peterlang.com/document/1093700" }