@book { AStudytoDeterminetheEffectsofExtraCurricularActivitiestotheAcademicPerformanceofSelectedStudentsinaNightHighSchool,
    title = "A Study to Determine the Effects of Extra Curricular Activities to the Academic Performance of Selected Students in a Night High School",
    author = "",
    year = "2020",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/520242"
}