WASET
Nor, M. , Jaffar, N. , Zain, N. , Suppian, N. , Balakrishnan, S. , Kandavello, G.. "Positivity Rate of Person under Surveillance among Institut Jantung Negara’s Patients with Various COVID-19 Vaccination Status in the First Quarter of 2022, Malaysia". World Academy of Science, Engineering and Technology, Open Science Index 204, International Journal of Health and Medical Engineering, (2023), 17(12), 313 - 317.