1. Nursing Studies Program Poltekes Yapkesbi Sukabumi, Jl. Subang Jaya, Subangjaya, Kec. Sukabumi, Kota Sukabumi, Jawa Barat 43116, Indonesia.
2. Lincoln University College, Wisma Lincoln, 12-18, Jalan SS 6/12, 47301 Petaling Jaya, Selangor, Malaysia.
3. Institute of Health Science Kuningan, Jl. Lkr. Bayuning No.2, Kadugede, Kec. Kadugede, Kabupaten Kuningan, Jawa Barat 45561, Indonesia.