Drop Lost Child (미아) 私だけ知らない (나만 몰랐던 이야기) Last Fantasy DVD Opening Movie Lost Child Boo & Hey Marshmallow & Nagging Good Day Only I Didn't Know Special
14th Ruler and 4th Emir Ibrahim, Youssef M. "After the War: Kuwait City; Nagging Question Lies Beneath Kuwait's Rejoicing: When Is the Emir Coming Home
Publications. 1070–쪽. ISBN 978-1-4129-6846-1. Dana E. Bushnell (1995년 1월 1일). 《"Nagging" Questions: Feminist Ethics in Everyday Life》. Rowman & Littlefield. 169–쪽