K.Periyanayagam, S.Gopalakrishnan, and V.Karthikeyan, “EVALUATION OF PHARMACOGNOSTICAL AND PHYTOCHEMICAL PROPERTIES OF THE LEAVES OF PSIDIUM GUAJAVA LINN- SMOOTH GREEN VARIETY”, Innovare J H Sci, vol. 1, no. 3, pp. 18–21, Oct. 2013.