Index Islamicus The Index Islamicus indexes material on Islam, the Middle East and the Muslim world from periodicals, Festschriften, conference proceedings, monographs, multi-authored works, book reviews, websites, and other materials in European languages, Turkish, Malay and Bahasa Indonesia. The database currently contains over 250,000 records covering more than 2,000 journals, and is searchable with 31 key indexes, including author, keyword, journal title, publication date, subject, title and record type.