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”, IJAST, vol. 29, no. 10s, pp. 3490-3496, Jun. 2020.