Assalamualikum.. While making dua is it allowed to have a dua book n look from that and ask dua because i have not by hearted allthe duas..

All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.

It is permissible for you to supplicate while reading from any book of supplications; however, you should choose a book which contains authentic supplications taken from the Book of Allaah and the Sunnah of the Prophet . Furthermore, you should avoid books which contain impermissible supplications, like books that, instead of supplicating to Allaah, supplicate to the Prophets, pious people and other forms of transgressing in supplications.

For more benefit, please refer to Fatwa 85023.