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  1. 1521

    Pirayoha uyiriyal : uyarthara uyiriyal by Rubasingam, S.

    Published 2010
    Subjects: “…Biology…”
    Book
  2. 1522

    Saththva ha shaka lokaya : samanya danima sangrahaya by Mudiyanse, Gunatilaka K.

    Published 2003
    Subjects: “…Biology…”
    Book
  3. 1523

    Shaka jiva vidyava : kriyakari shakaya (nava sanskaranaya) by Nandadasa, H. G.

    Published 2011
    Subjects: “…Biology…”
    Book
  4. 1524

    Shaka poshanaya by Tilakaratna, Weeratunga P.

    Published 2009
    Subjects: “…Biology…”
    Book
  5. 1525

    Shakha jivavidyava : kriyakari shakhaya (a. po. sa. usas pela sandaha) by Nandadasa, H. G.

    Published 2014
    Subjects: “…Biology…”
    Book
  6. 1526

    Ugeriyal vingnamum tholil nutpamum by Ganesalingam, V. K.

    Published 2007
    Subjects: “…Biology…”
    Book
  7. 1527

    Understanding biosecurity and quarantine :34th annual sessions of the institute of biology Sri Lanka

    Published 2014
    Subjects: “…Biology…”
    Book
  8. 1528

    UNESCO/Bangkok sponsored national training workshop on biology education

    Subjects: “…Biology…”
    Book
  9. 1529

    Usas pela jiva vidyava 2 by Senarathna , Duminda

    Published 2010
    Subjects: “…Biology…”
    Book
  10. 1530

    Usas pela jiva vidyava 3 : ekaka 05/06 by Senarathne, Duminda

    Published 2011
    Subjects: “…Biology…”
    Book
  11. 1531

    Usas Pela Jiva Vidyava 4 : Ekaka 07/08/09 (Nava Vishaya nirdeshaya) by Senarathna , Duminda

    Published 2012
    Subjects: “…Biology…”
    Book
  12. 1532

    Usas pela jiva vidyava 6 : praveniya, parisarika jiva vidyava by Senarathna , Duminda

    Published 2013
    Subjects: “…Biology…”
    Book
  13. 1533

    Usas pela jiva vidyava : Adarsha bahuvarana 500 saha pilithuru vivarana by Thilakarathna, Weerathunga P.

    Published 2013
    Subjects: “…Biology…”
    Book
  14. 1534

    Usas pela jiva vidyava jivaye rasayanika saha sailiya padanama (nava nirdeshaya) by Thilakaratna, Weeratunga P.

    Published 2009
    Subjects: “…Biology…”
    Book
  15. 1535

    Usas pela jiva vidyava keti satahan 127 by Tilakaratna, P. Weeratunga

    Published 2007
    Subjects: “…Biology…”
    Book
  16. 1536

    Usas pela jiva vidyava keti satahan 180 (nava nirdeshaya) by Thilakaratne, Weerathunga P.

    Published 2011
    Subjects: “…Biology…”
    Book
  17. 1537

    Usas pela jiva vidyava : kriyakari sathvaya by Tilakaratna, Weeratunga P.

    Published 2003
    Subjects: “…Biology…”
    Book
  18. 1538

    Usas pela jiva vidyava : parivahanaya ( nava nirdeshaya) by Thilakarathna, Weerathunga P.

    Published 2010
    Subjects: “…Biology…”
    Book
  19. 1539

    Usas pela jiva vidyava sandaha sankhyanaya by Tilakaratna, Weeratunga P.

    Published 2005
    Subjects: “…Biology…”
    Book
  20. 1540

    Usas pela jiva vidyava : viyuhagata rachana by Rajapakse, R. M. D.

    Published 2002
    Subjects: “…Biology…”
    Book