I. Islaeli and A. Purnama Sari, “FACTORS RELATED TO THE EVENT OF SIBLING RIVALRY IN CHILDREN 1-5 YEARS OLD IN LABIBIA SUB-DISTRICT OF MANDONGA DISTRICT IN KENDARI CITY: Sibling Rivalry”, ijhsrd, vol. 2, no. 2, pp. 43–47, Oct. 2020.