Gaya APA
Walpole, P. (2010).
Learning sustainable life: Bukidnon Pulangiyen Community Experience of integrating mother tongue education for sustainable development. .
Malaybalay:
Malaybalay Apu Palamguwan Cultural Education Center.
Gaya MLA
Walpole, Pedro.
"Learning sustainable life: Bukidnon Pulangiyen Community Experience of integrating mother tongue education for sustainable development. ".
Malaybalay:
Malaybalay Apu Palamguwan Cultural Education Center,
2010.
Buku.