Central Tehran Branch. IAUJournal of Linear and Topological Algebra (JLTA)2252-0201060420171201On some open problems in cone metric space over Banach algebra261267536118ENA. AhmedDepartment of Humanities and Basics Sciences, School of Engineering, Matoshri Pratishthan Group of Institutions, Nanded, India0000-0001-7313-5991Z. D. MitrovicUniversity of Banja Luka, Faculty of Electrical Engineering, Patre 5, 78000 Banja Luka, Bosnia and HerzegovinaJ. N. SalunkeSchool of Mathematical Sciences, Swami Ramanandh Teerth Marathwada University, Nanded, India20171024http://jlta.iauctb.ac.ir/article_536118_fb4cb5258f2239d175a2738adf45e36f.pdf