“Forty Etudes for Kamancheh Players” book has been published. In this book, Ehsan Zabihifar has compiled and arranged works by Alinaghi Vaziri, Ruhollah Khaleghi, Mehdi Meftah, Mahmoud Zolfanoun, Ahmad Foroutan-Rad, Nasrollah Zarrin-Panjeh for Kamancheh. The audio version of this etudes is also in two audio CDs with the book, which has been performed by Hediyeh Mashayekh based on the notationes of the book. This book was published by Mahoor Publications in 2022 and has been available to those who are interested. .