Rahmaniah BI, Krisnatuti D. The Perception of Ageism, Generativity, and the Attainment of Developmental Tasks of Elderly Widowers and Widows in Bogor, West Java, Indonesia. JFS [Internet]. 2016Jul.1 [cited 2024May1];1(1):1-12. Available from: https://jurnal.ipb.ac.id/index.php/jfs/article/view/10259