“Impact of Different Shapes of Pitchers on Water Saving and Water Use Efficiency of Ridge-gourd in Semi Arid Region of Pakistan: Pitcher Irrigation Impact on Ridge-gourd”, Pakistan Journal of Scientific & Industrial Research, vol. 61, no. 2, pp. 72–77, Aug. 2018, doi: 10.52763/PJSIR.BIOL.SCI.61.2.2018.72.77.