Address: Punak Square, Hamila Blvd, Orak Street, P.O. Box: 86831-14676, Tehran, Iran.
Department of Mathematics, Central Tehran Branch of Islamic Azad University.
Editorial-Office of JLTA.
E-mail: jlta@iauctb.ac.ir; jlta.contact@gmail.com
Tel & Fax: +98 21 22122987