Author(s): Ilhamuddin Nasution, Muhammad Lathief Ilhamy Nasution,

Date: Oct 29, 2018

Source: JUMANTIK (Jurnal Ilmiah Penelitian Kesehatan)

Publisher: Prodi Ilmu Kesehatan Masyarakat FKM UIN SU MEDAN, Universitas Islam Negeri Sumatera Utara Medan