Nurul Adibah Mokhtar, Hafiz-Afham Khaini, Azlan Abas, Harinder Rai Singh, Faezah Pardi, Nurul Aida Kamal Ikhsan, Hartini Mahiddin, Asmida Ismail. “Lichen Biodiversity Index (LBI) As Bio-Monitoring Tool for Air Pollution Assessment in Shah Alam, Selangor”. International Journal of Advanced Science and Technology 29, no. 10s (June 1, 2020): 3490-3496. Accessed May 2, 2024. http://sersc.org/journals/index.php/IJAST/article/view/20880.