N. Ibrahim, M. Aminu, A. M. Ismail, A. Salisu, and G. Magaji, “Development of RP-HPLC method for the determination of lisinopril in human saliva”, WAJP, vol. 32, no. 1, pp. 174–181, Jan. 2021, doi: 10.60787/wajp.vol32no1.363.