“Social Marketing Promotion Strategy on Pregnant Women’s Decision to Adopt ‘Sayang Bunda’ Application in Semarang, Indonesia”, J HEALTH PROMOT BEHAV, vol. 5, no. 2, pp. 104–113, Apr. 2020, Accessed: Oct. 18, 2025. [Online]. Available: https://www.thejhpb.com/index.php/thejhpb/article/view/243