Veronica
Studi validasi recall dengan metode pengisian kuesioner modifikasi day in the life questionnaire dan wawancara pada siswa sekolah dasar Depok Tahun 2016 = Recall methods validation study of completing the modified day in the life questionnaire and interview in school children at Depok 2016
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2016
 UI - Skripsi Membership
Yin, Robert K.
Case study research: design and methods
SAGE Publication, 1989
 Buku Teks SO
Yin, Robert K.
Case study research: design and methods
SAGE Publication, 1985
 Buku Teks SO
Yin, Robert K.
Studi kasus: desain dan metode = Case study research: design and methods
Rajawali, 2013
 Buku Teks
Peterson, Robert A.
Constructing effective questionnaires
Sage Publications, Inc., 2000
 Buku Teks SO