AIP Conference Proceedings [AIP Publishing THE 2018 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2018 Postgraduate Colloquium - Selangor, Malaysia (4–6 April 2018)] THE 2018 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2018 Postgraduate Colloquium - Applications of fractional power series approach in solving fractional Volterra integro-differential equations