Planas, T. (1975). Some aspects of exporting Philippine ginger. Special Studies Division, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources.
Lua i Stíl Chicago (17ú heag.)Planas, T.A. Some Aspects of Exporting Philippine Ginger. Quezon City: Special Studies Division, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources, 1975.
Lua MLA (9ú heag.)Planas, T.A. Some Aspects of Exporting Philippine Ginger. Special Studies Division, National Food and Agriculture Council, Dept. of Agriculture and Natural Resources, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.