Hannum E, Liu X, Wang F. Estimating the effects of educational system contraction: the case of China's rural school merger initiative. Econ Dev Cult Change. 2021 Oct 1;70(1):485-528. doi: 10.1086/711654
Dickinson KL, Patil SR, Pattanayak SK, Poulos C, Yang JH. Nature's call: impacts of sanitation choices in Orissa, India. Econ Dev Cult Change. 2015 Oct;64(1):1-29.
Webster AJ, Saville C, Church BM, Gnanasakthy A, Moss R. Some effects of different rearing systems on health, cleanliness and injury in calves. Vet J. 1985 Sep;141(5):472-83.
Webster AJ, Saville C, Church BM, Gnanasakthy A, Moss R. The effect of different rearing systems on the development of calf behaviour. Vet J. 1985 May;141(3):249-64.