Seshachar, B. R ; Padmavathi, P. B Seshachar, B. R. and Padmavathi, P. B. (1959) Conjugation in Spirostomum. Nature, 184 (4697). pp. 1510-1511..
,
1959
Padmavathi, P. B Padmavathi, P. B. (1959) Chromatographic analysis of the vegetative and binary fission stages of spirostomum ambigumm Mull-Ehrbg. Science of Nature, 46 (8). p. 269..
,
1959
G V Sowmya ; B N Padmavathi ; Mohitpal Singh. http://www.jiaomr.in/article.asp?issn=0972-1363;year=2012;volume=24;issue=2;spage=117;epage=120;aulast=Sowmya.
,
2012
S V Ravindra ; G P Mamatha ; B N Padmavathi.. http://www.jiaomr.in/article.asp?issn=0972-1363;year=2011;volume=23;issue=5;spage=419;epage=421;aulast=Ravindra.
,
2011