Tungpalan, L. M. B. (1997). Promises to keep: Return to nursing. Soller Press.
Lua i Stíl Chicago (17ú heag.)Tungpalan, Luz M. Buenavista. Promises to Keep: Return to Nursing. Quezon City: Soller Press, 1997.
Lua MLA (9ú heag.)Tungpalan, Luz M. Buenavista. Promises to Keep: Return to Nursing. Soller Press, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.