FIRDAUS; FITRIASARI, A. Analysis of Age Distance And Attitude of Parents With The Sibling Rivalry in Paud Kasih Ibu Karangrejo VI Wonokromo Surabaya. PROCEEDING SURABAYA INTERNATIONAL HEALTH CONFERENCE 2019, [S. l.], v. 1, n. 1, p. 238–243, 2020. Disponível em: https://conferences.unusa.ac.id/index.php/SIHC19/article/view/526. Acesso em: 17 may. 2021.