Uthaiwan Kanto; Kanapol Jutamanee; Yongyuth Osotsapar; Sukanya Jattupornpong; Chongrak Kaewprasit. Effect of Swine Manure Extract by Foliar Application and Soil Drenching on Dry Matter and Nutrient Uptake of Cassava. Agr. Nat. Resour. 2011, 45, 995-1005.