Muhammad Ridha Haykal Amal
Faculty of Law, University of Medan Area, Medan 20155, Indonesia
Article(s):
- Vol. 10 (2020) No. 4
Nutritional Status of Elderly in Urban and Rural North Sumatera, Indonesia
Siti Zahara Nasution, Muhammad Ridha Haykal Amal, Reni Asmara Ariga, Cholina Trisa Siregar, Widya Darayani Purba
