In order to support environmental protection and prevent the indiscriminate cutting of trees, and also considering the high cost of buying books (both hard copy and digital copy), we kindly ask the respected authors and publishers to send us the files of any books they have that do not have any restrictions on sending or downloading (with the observance of publication and copyright laws) to the email address of the journal so that they can be uploaded in the Book Bank section and be made available to students and researchers who are unable to purchase them or do not have access to them for any reason. Thank you.