Gaya APA

Siregar, L, ď, ,, E, K, B, C, T. (). “Health Belief Model” in the Prevention of Chronic Disease in the Elderly . : .

Gaya MLA

Siregar, Lufthiani, , ,, Evi, Karota, Bukit,, Cholina, T.. "“Health Belief Model” in the Prevention of Chronic Disease in the Elderly". : , . Text.