Rapani, & Soewin. (1953). Ilmu alam (physica). Bukittinggi: Andalas.
Chicago Style CitationRapani, and Soewin. Ilmu Alam (physica). Bukittinggi: Andalas, 1953.
MLA CitationRapani, and Soewin. Ilmu Alam (physica). Bukittinggi: Andalas, 1953.
Warning: These citations may not always be 100% accurate.