1] ms Nina Okuka TESTING OF THE QUALITY OF DISTILLED WATER USED FOR SYRUP RECONSTITUTION IN PHARMACIES ON THE TERRITORY OF BOSNIA AND HERZEGOVINA" - Contemporary Materials 2018 - Savremeni Materijali, 30.06.2018.
(https://ekonferencije.com/sr1/rad/testing-of-the-quality-of-dist/5617)

2] ms Nina Okuka STRESS DEGRADATION OF LISINOPRIL DIHYDRATE IN DIFFERENT AQUEOUS MEDIA" - Contemporary Materials 2017 - Savremeni Materijali, 11.10.2017.
(https://ekonferencije.com/sr1/rad/stress-degradation-of-lisinopr/5524)