@book { InternationalHandbookofProgressiveEducation,
    title = "International Handbook of Progressive Education",
    author = "Mustafa Yunus {Eryaman} and Bertram C. {Bruce}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    doi = "10.3726/978-1-4539-1522-6",
    url = "https://www.peterlang.com/document/1051632"
}