A. B. Pamungkas and F. Riandari, “Analysis of Disease in Plants Guava Demspter Shafer Method Using Web Based in the village of Paradise Sei Rampah: Analysis of Disease in Plants Guava Demspter Shafer Method Using Web Based in the village of Paradise Sei Rampah”, Mantik, vol. 3, no. 3, pp. 69-72, Nov. 2019.