RINI, S., MASUD, Z. A., NASRULLAH, N., BEY, A., & TJITROSEMITO, S. (2009). Tolerance Levels of Roadside Trees to Air Pollutants Based on Relative Growth Rate and Air Pollution Tolerance Index. HAYATI Journal of Biosciences, 15(3), 123. https://doi.org/10.4308/hjb.15.3.123