http://news.detik.com/berita/2152802/klub-tawa-cara-sehat-hilangkan-stres-dan-bikin-awet-muda
http://www.wawasanews.com/2013/01/semenit-tertawa-samai-20-menit-olahraga.html
http://news.detik.com/berita/2152802/klub-tawa-cara-sehat-hilangkan-stres-dan-bikin-awet-muda
http://www.wawasanews.com/2013/01/semenit-tertawa-samai-20-menit-olahraga.html