1. Studies on the seeds of various taxa of Utricularia occurring in West Bengal;Abraham,1965
2. Etudes ultrastructurales et cytochimiques des tissus superficiels placésàl'entrée des urnes d' Utricularia (Lentibulariaceae);Broussaud;Bull. Soc. Bot. Fr., Lettres bot.,1982
3. Studies in Lentibulariaceae. I. The embryology of Utricularia stellaris Linn. f. var. inflexa Clarke;Farooq,1964
4. Plant microtechnique: Some principles and new methods;Feder;Am. J. Bot.,1968
5. Ontogeny of external glands in the bladderwort Utricularia monanthos;Fineran;Protoplasma,1980