Madarang, A.-J. M., J. H. Mirador, J. P. Labindao, N. Maquio, and R. Ballito. “Alternative Small Scale Native Pig Production Cum Natural Farming and Profit Viability”. The International Journal of Science, Technology and Engineering, vol. 1, no. 1, Dec. 2017, https://ijste.psu.edu.ph/index.php/1/article/view/7.