Westcott, W. L., & Baechle, T. R. (1999). Kembali bugar setelah lima puluh=strength training past 50. Raja Grafindo Persada.
Chicago Style (17th ed.) CitationWestcott, Wayne L., and Thomas R. Baechle. Kembali Bugar Setelah Lima Puluh=strength Training Past 50. Raja Grafindo Persada, 1999.
MLA (8th ed.) CitationWestcott, Wayne L., and Thomas R. Baechle. Kembali Bugar Setelah Lima Puluh=strength Training Past 50. Raja Grafindo Persada, 1999.
Warning: These citations may not always be 100% accurate.