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| Language: | English |
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| Language: | English |
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| 6 | Photoperiod and seasonal reproduction in a subtropical sparrow |
| Language: | English |
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| 8 | Some aspects of photochronobiology in the female blackheaded bunting, Emberiza Melanocephala |
| Language: | English |
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| 10 | |
| Language: | English |
| 11 | Photoperiod in the regulation of sexual cycle of tropical birds |
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| Language: | English |
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| 14 | Effect of plant growth regulators on dormancy, growth, flowering and yield of Coleus parviflorus |
| Language: | English |
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