On some $n$-starlike integral operators

By a completion of a lemma of Babalola and Opoola \cite{KT}, we prove that certain generalized integral operators preserve $n$-starlikeness in the open unit disk $E=\{z\in \mathbb{C}:\mathrm{\mid }z\mathrm{\mid }<1\}$. Our results generalize, extend and improve many known ones.