“Effect of Plant Growth Regulators on Yield and Quality of Guava (Psidium Guajava L.) Cv. Allahabad Safeda ”. Indian Journal of Arid Horticulture, vol. 9, no. 1&2, Mar. 2015, pp. 108-11, https://acspublisher.com/journals/index.php/ijah/article/view/18257.