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Tsou, C.-H.; Johnson, D. M. (2003). "Comparative development of aseptate and septate anthers of Annonaceae". American Journal of Botany. 90 (6): 832–848. doi:10.3732/ajb.90.6.832. ISSN0002-9122. PMID21659178.
Tsou, C.-H.; Johnson, D. M. (2003). "Comparative development of aseptate and septate anthers of Annonaceae". American Journal of Botany. 90 (6): 832–848. doi:10.3732/ajb.90.6.832. ISSN0002-9122. PMID21659178.
Tsou, C.-H.; Johnson, D. M. (2003). "Comparative development of aseptate and septate anthers of Annonaceae". American Journal of Botany. 90 (6): 832–848. doi:10.3732/ajb.90.6.832. ISSN0002-9122. PMID21659178.