Kreuzer, Fabian Maximilian. “Innovation and Sustainable Development in Refugee Camps: Concrete Action: Twin-Pit VIP Latrine and Large Ferro-Cement Water Tank”. Consilience, no. 3 (February 1, 2010). Accessed December 23, 2024. https://journals.library.columbia.edu/index.php/consilience/article/view/4496.