Chandra, Deded, et al. “The Making of Solar Systems As a One Of Geography Learning Media in Sma N 2 Batang Anai, Padang Pariaman Regency and SMA N 5 Bukittinggi, Bukittinggi City”. Sumatra Journal of Disaster, Geography and Geography Education, vol. 3, no. 2, Dec. 2019, pp. 118-22, doi:10.24036/sjdgge.v3i2.240.