Tika Widiastuti and Imam Wahyudi Indrawan (2015) Optimizing Cash Waqf Empowerment Through Institutionalization of Education Institute of Nashir. Proceedings International Conference and Ph.D Colloquium on Islamic Economics and Finance 2015 (ICIEF'15) . Dept. Ekonomi Syariah FEB Unair, Surabaya. ISBN ISSN: 2460-6685

Tika Widiastuti and Raditya Sukmana and Sri Herianingrum, eds. (2015) The Role of Economic Empowerment for The Poor in a Zakat Institution. Proceedings Sydney International Business Research Conference 2015 . University of Western Sydney, Sydney. ISBN 978-0-9942714-0-2