1. Department of Medical Surgical Nursing, Sekolah Tinggi Ilmu Keperawatan PPNI Jawa Barat, Bandung, Indonesia
2. Department of Community and Psychiatric Nursing, Sekolah Tinggi Ilmu Keperawatan PPNI Jawa Barat, Bandung, Indonesia
3. Department of maternity Nursing, Sekolah Tinggi Ilmu Keperawatan PPNI Jawa Barat, Bandung, Indonesia
4. Faculty of Engineering, Universitas Negeri Jakarta, Jakarta, Indonesia