Hanifi, Abdul Wasi, et al. “Effect of Intra-Row Spacing and Potassium Fertilizer on Growth and Yield of Potato (Solanum Tuberosum L.)”. Nangarhar University International Journal of Biosciences, vol. 4, no. 02, Dec. 2025, pp. 35-42, doi:10.70436/nuijb.v4i02.398.