PUTRI, D. M.; MAIYASTRI, M.; DEVIANTO, D. The Definite Positive Property of Characteristic Function from Compound Geometric Distribution as The Sum of Gamma Distribution. Science and Technology Indonesia, [S. l.], v. 3, n. 1, p. 49–52, 2018. DOI: 10.26554/sti.2018.3.1.49-52. Disponível em: https://sciencetechindonesia.com/index.php/jsti/article/view/68. Acesso em: 10 may. 2026.