| نقل قول | Schoppe, S., 2000 A guide to common shallow water sea stars, brittle stars, sea urchins, sea cucumbers and feather stars (echinoderms) of the Philippines. Times Media Private Limited, Singapore. 144 p. |
| مرجع | 800 Schoppe, S., 2000 |
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| Named Used as Valid | Holothuria rigida |
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