@book { PrimaryschoolteachersperceptionofheadteacherscurriculumsupervisioninEmgwenDivisionNandiNorthDistrictKenya,
    title = "Primary school teachers' perception of head teachers' curriculum supervision in Emgwen Division, Nandi North District, Kenya",
    author = "Omulako Eman {Jairo} and Valentine {Jepchumba}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656161745",
    url = "https://www.hausarbeiten.de/document/191397"
}