Reaching for the skies
edited by Toy Magie
Academy Editions, 1995
 Buku Teks SO
Hays, Kate F
Reaching out, reaching in: Two examples of public education
bimonthly, 2006
 Artikel Jurnal
Tymieniecka, Anna-Teresa
Art, literature, and passions of the skies
Springer, 2012
 eBooks
Jeju Island : reaching to the core of beauty
Hanguk Kukche Kyoryu Chaedan
Seoul Selection, 2011
 Buku Teks SO
Barnes-Svarney, Patricia L.
Skies of fury : weather weirdness ground the world
Simon & Schuster , 1999
 Buku Teks