VIKRAM BHARATI et al. 2020. Impact of front line demonstration on yield and economics of sunflower (Helianthus annuus L.) in Bihar: Impact of front line demonstration on yield and economics of sunflower (Helianthus annuus L.) in Bihar. Journal of Oilseeds Research. 37, Specialissue (Mar. 2020). DOI:https://doi.org/10.56739/jor.v37iSpecialissue.141340.