| | Cave |
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| | The Bio-Physico- Chemical Characteristics and Management of Bengao-ngao Cave, Ambongdolan, Tublay, Benguet and Crystal Cave 1, Bakakeng Central, Baguio City (Bayeng, Junalyn; et al.pdf) |
| | Potential of Guano Cave in San Juan, AbraAs a Tourist Destination (JAY ANN B. BALICAO.pdf) |
| | Tourist Assessment on Facilities and Services in Sagada, Mountain Province (Padang, Jeremia.pdf) |
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