GAZI UNIVERSITY JOURNAL OF SCIENCE, cilt.32, sa.4, ss.1238-1252, 2019 (ESCI)
This paper examines Hyers-Ulam (HU), Hyers-Ulam-Rassias (HUR) and HyersUlam-Rassias-Gavruta (HURG) stability of the first-order differential equation including Bernoulli's, Riccati and Abel with given initial condition.