Heltty, H., Doctoral Student of Nursing Faculty, Universitas Indonesia, Depok Indonesia, Jl. Prof. Dr. Bahder Djohan, Kampus UI Depok Jawa Barat, Indonesia; Sitorus, R., Professor of Nursing, Faculty of Nursing, Universitas Indonesia, Jl. Prof. Dr. Bahder Djohan, Kampus UI Depok Jawa Barat, Indonesia; Nusdwinuringtyas, N., Associate Professor Ph.D, Faculty of Medicine, Universitas Indonesia, Depok, Indonesia; Martha, E., Associate Professor Ph.D M.Kes (health), Faculty of Public Health, Universitas Indonesia, Depok, Indonesia