Jin, C.S. and Keng, C.L. 2014. Factors Affecting the Selection of Callus Cell Lines and the Preparation of the Cell Suspension Culture of Artemisia annua L. Plant Tissue Culture and Biotechnology. 23, 2 (Jan. 2014), 157–163. DOI:https://doi.org/10.3329/ptcb.v23i2.17507.