Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 125-154
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 155-160
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 161-165
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 166-170
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 171
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 172-174
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 175-186
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 187-189
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 190-194
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 195-198
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 199-200
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 201-205
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 206-208
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 209-214
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 215-218
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 219-224
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 225-227
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 228-243
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 244-250
Published in Gardens' Bulletin Singapore, in 1959, in volume 17, issue 2, pages 251-252
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 253-272
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 273-275
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 276-278
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 279-311
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 312-324
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 325-330
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 331-336
Published in Gardens' Bulletin, Singapore, in 1959, in volume 17, issue 2, pages 337-338