The relationship between plant and humans in indoor environment: A pilot test during the COVID-19 pandemicL.B. Yeo, G.H.T. Ling, A. Abd Ghafar, S.A. Mohamed, N.I. Othmani, N.H. Abdul Hamid, W.S.N. Wan Mohamad, R. Hasan and S. AzizBIO Web Conf., 73 (2023) 03001DOI: https://doi.org/10.1051/bioconf/20237303001