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Malayan Ferns Notes
Published in Gardens' Bulletin Singapore, in 1959, in volume 17, issue 2, pages 251-252
Kew and Singapore
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 155-160
Kwan Koriba
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 339-340