The Subject Of The Order Is The Purchase Of The Following Books: "Assessment And Quality Control Of Analytical Measurement Results" Author; Piotr Konieczka, Jacek Namieśnik, Wydawnictwo Naukowe Pwn, Year Of Publication: 2017, Softcover. "Statistical Analysis In A Forensic Laboratory" Author: Wojciech Hyk, Zbigniew Stojek, Wydawnictwo Naukowe Pwn, Year Of Publication: 2020, Paperback.