The comparison of reducing plaque index before and after using chewing gum and tooth brushing in Pertiwi Junior High School students

Los Angeles

"Toward a unified theory of management : a symposium held at the Graduate School of Business Administration (University of California, Los Angeles, November 8 and 9, 1962) /Harold Koontz

Analisis standar isis bahasa inggeris SMP dan SMA (analysis of contect standards for english in junior secondary school and senior secondary school)

Pengaruh media visual terhadap prestasi akademis murid kelas VII Sekolah Menengah Pertama Negeri 115 Jakarta = Screen media impact on academic performance of grade VII students in Junior High School 115 Jakarta